Definitions

1. the quality or state of being acid.
2. Sourness; tartness.
3. Excessive acid quality, as of the gastric juice.

Biology ,Living or occurring only in the presence of oxygen: aerobic bacteria.
Of or relating to aerobes

1. relating to or dealing with the subject of aesthetics; aesthetic values
2. concerning or characterized by an appreciation of beauty or good taste; the aesthetic faculties; an aesthetic person; aesthetic feeling; the illustrations made the book an aesthetic success
3. Esthetically pleasing; an artistic flower arrangement

The alkali concentration or alkaline quality of an alkali-containing substance pH values above 7

An organism, such as a bacterium, that can live in the absence of atmospheric oxygen Occurring in the absence of oxygen or not requiring oxygen to live. Anaerobic bacteria produce energy from food molecules without the presence of oxygen

An annual plant. Annuals germinate, blossom, produce seed, and die in one growing season. They are common in environments with short growing seasons. Most desert plants are annuals, germinating and flowering after rainfall. Many common weeds, wild flowers, garden flowers, and vegetables are annuals. Examples of annuals include tomatoes, corn, wheat, sunflowers, petunias, and zinnias
Arboriculture: The planting and care of woody plants, especially trees

a specialist in the cultivation and care of trees and shrubs, including tree surgery, the diagnosis, treatment, and prevention of tree diseases, and the control of pests.

a plain-woven, coarse fabric of jute, hemp, or the like; gunny.
2. A lightweight fabric made in imitation of this.
3. To wrap with burlap: to burlap and tie a newly dug tree

of or pertaining to a tree or shrub prepared for transplanting by having all or most of the soil removed from about its roots

Material that, left to itself, will be decomposed by natural processes

a tree or shrub that has been dwarfed, as by pruning the roots and pinching, and is grown in a pot or other container and trained to produce a desired shape or effect. A small decorative evergreen shrub or tree grown in a pot, which has been prevented from growing to its usual size by various methods

of or pertaining to plants having broad or relatively broad leaves, rather than needles.

A rounded underground storage organ that contains the shoot of a new plant. A bulb consists of a short stem surrounded by fleshy scales (modified leaves) that store nourishment for the new plant. Tulips, lilies, and onions grow from bulbs

A strong, large-diameter, heavy steel or fiber rope.
Something that resembles such steel or fiber rope

A cylindrical layer of tissue in the stems and roots of many seed-bearing plants, consisting of cells that divide rapidly to form new layers of tissue. Cambium is a kind of meristem and is most active in woody plants, where it lies between the bark and wood of the stem. It is usually missing from monocotyledons, such as the grasses. ? the vascular cambium forms tissues that carry water and nutrients throughout the plant. On its outer surface, the vascular cambium forms new layers of phloem, and on its inner surface, new layers of xylem. The growth of these new tissues causes the diameter of the stem to increase. ? the cork cambium creates cells that eventually become bark on the outside and cells that add to the cortex on the inside. In woody plants, the cork cambium is part of the periderm

The protection, preservation, management, or restoration of natural environments and the ecological communities that inhabit them. Conservation is generally held to include the management of human use of natural resources for current public benefit and sustainable social and economic utilization.

Having male flowers on one plant and female flowers on another plant of the same species. The holly and asparagus plants are dioecious

Lying asleep or as if asleep; inactive.
Latent but capable of being activated: a harrowing experience which . . . lay dormant but still menacing (Charles Jackson).

a masonry or stone wall laid up without mortar

to provide with an edge or border: to edge a terrace with shrubbery; to edge a skirt with lace

a trellis or framework on which the trunk and branches of fruit trees or shrubs are trained to grow in one plane. A tree or shrub that is trained to grow in a flat plane against a wall, often in a symmetrical pattern.

1. (of trees, shrubs, etc.) having green leaves throughout the entire year, the leaves of the past season not being shed until after the new foliage has been completely formed.
?noun 2. An evergreen plant.
3. Evergreens, evergreen twigs or branches used for decoration
Evergreen trees lose their leaves individually on an ongoing basis, rather than losing all of them in a short period at the end of a growing season in the manner of deciduous trees.

1. the act of digging; there's an interesting excavation going on near Princeton
2. The site of an archeological exploration; they set up camp next to the dig [syn: dig]
3. A hole in the ground made by excavating
4. The act of extracting ores or coal etc from the earth

Architecture A sculptured ornament, often in the shape of a leaf or flower, at the top of a gable, pinnacle, or similar structure.
An ornamental terminating part, as on a post or piece of furniture

1. the confinement of an infection to a limited area
2. The act of bringing into focus

treat with fumes, expose to fumes, especially with the aim of disinfecting or eradicating pests

a substance or preparation, as a spray or dust, used for destroying fungi

1. a structure, as an open or latticework pavilion or summerhouse, built on a site that provides an attractive view.
2. A small roofed structure that is screened on all sides, used for outdoor entertaining and dining

1. a crop of growing plants, as clover and other nitrogen-fixing plants, plowed under to enrich the soil.
2. Manure that has not undergone decay
A growing crop, such as clover or grass that is plowed under the soil to improve fertility.

1. the herbaceous plants and low shrubs in a forest, considered as a whole.
2. Any of a variety of low-growing or trailing plants used to cover the ground in areas where grass is difficult to grow, as in dense shade or on steep slopes

The thick wormlike larva of certain beetles and other insects

The part of a building's grounds consisting of structures, such as patios, retaining walls, and walkways, made with hard materials

1. of, pertaining to, or characteristic of an herb; herblike.
2. (Of plants or plant parts) a. not woody.
B. having the texture, color, etc., of an ordinary foliage leaf A flowering plant whose stem does not produce woody tissue and generally dies back at the end of each growing season. Both grasses and forbs are herbs.

The cultivation of a garden, orchard, or nursery; the cultivation of flowers, fruits, vegetables, or ornamental plants.
2. The science and art of cultivating such plants

the dark organic material in soils, produced by the decomposition of vegetable or animal matter and essential to the fertility of the earth
A brown or black organic substance consisting of partially or wholly decayed vegetable or animal matter that provides nutrients for plants and increases the ability of soil to retain water.

the offspring of two animals or plants of different breeds, varieties, and species, or genera, esp. as produced through human manipulation for specific genetic characteristics

a gel whose liquid constituent is water.

1. not having the structure or organization characteristic of living bodies.
2. Not characterized by vital processes.
3. Chemistry. Noting or pertaining to compounds that are not hydrocarbons or their derivatives. Compare organic (def. 1).
4. Not fundamental or related; extraneous

1. a substance or preparation used for killing insects.
2. The act of killing insects.

the artificial application of water to land to assist in the production of crops.

a rich, friable soil containing a relatively equal mixture of sand and silt and a somewhat smaller proportion of clay

Any of a class of angiosperm plants having a single cotyledon in the seed. Monocotyledons have leaves with parallel veins, flower parts in multiples of three, and fibrous root systems. Their primary vascular bundles are scattered throughout the stem, not arranged in a ring as in eudicotyledons. Grasses, palms, lilies, irises, and orchids are monocotyledons

Any of a class of angiosperm plants having a single cotyledon in the seed. Monocotyledons have leaves with parallel veins, flower parts in multiples of three, and fibrous root systems. Their primary vascular bundles are scattered throughout the stem, not arranged in a ring as in eudicotyledons. Grasses, palms, lilies, irises, and orchids are monocotyledons

Any of numerous small bryophyte plants belonging to the phylum Bryophyta.
Mosses, unlike liverworts, have some tissues specialized for conducting water and nutrients. As in the other bryophytes, the diploid sporophyte grows on the haploid gametophyte generation, which supplies it with nutrients. Mosses often live in moist, shady areas and grow in clusters or mats. Sphagnum mosses play a crucial role in the ecology of peat bogs. See more at bryophyte.
Any of a number of plants that look like mosses but are not related to them. For instance, reindeer moss is lichen, Irish moss is an alga, and Spanish moss is a bromeliad, a flowering plant

a colorless, odorless, gaseous element that constitutes about four-fifths of the volume of the atmosphere and is present in combined form in animal and vegetable tissues, esp. in proteins: used chiefly in the manufacture of ammonia, nitric acid, cyanide,
explosives, fertilizer, dyes, as a cooling agent

A point on a stem where a leaf is or has been attached.
A swelling or lump on a tree; a knob or knot.
Open-Pollinated: of a flower) pollinated without human agency

Using or produced with fertilizers of animal or vegetable matter, using no synthetic fertilizers or pesticides.
Free from chemical injections or additives, such as antibiotics or hormones.

1. also called bog moss. Any moss, esp. of the genus Sphagnum, from which peat may form.
2. Such moss after it has been dried, used chiefly as a mulch or seedbed, for acidification.

A perennial plant. Herbaceous perennials survive winter and drought as underground roots, rhizomes, bulbs, corms, or tubers. Woody perennials, including vines, shrubs, and trees, usually stop growing during winter and drought. Asters, irises, tulips, and peonies are familiar garden perennials

A measure of the acidity or alkalinity of a solution, numerically equal to 7 for neutral solutions, increasing with increasing alkalinity and decreasing with increasing acidity. The pH scale commonly in use ranges from 0 to 14

A highly reactive, poisonous nonmetallic element occurring naturally in phosphates, especially in the mineral apatite. It exists in white (or sometimes yellow), red, and black forms, and is an essential component of protoplasm. Phosphorus is used to make matches, fireworks, and fertilizers and to protect metal surfaces from corrosion

Having pistils but no stamens. Female flowers are pistillate.

A plant stem that grows horizontally under or along the ground and often sends out roots and shoots. New plants develop from the shoots. Ginger, iris, and violets have rhizomes. Also called rootstock

A hair like outgrowth of a plant root that absorbs water and minerals from the soil. Root hairs are tubular extensions of the epidermis that greatly increase the surface area of the root. They are constantly dying off and being replaced by new ones as the root grows and extends itself into the soil.

1. a horizontal plant stem with shoots above and roots below serving as a reproductive structure [syn: rhizome]
2. Root or part of a root used for plant propagation; especially that part of a grafted plant that supplies the roots

Also, cion. a shoot or twig, esp. one cut for grafting or planting; a cutting.

A. a strip of plaster or wood applied to a surface to be plastered to serve as a guide for making a true surface.
B. a wooden strip serving as a guide for making a true level surface on a concrete pavement or the like.
C. a board or metal strip dragged across a freshly poured concrete slab to give it its proper level

a woody plant smaller than a tree, usually having multiple permanent stems branching from or near the ground

A section of grass-covered surface soil held together by matted roots; turf.
The ground, especially when covered with grass

a plant grown by itself for ornamental effect, rather than being massed with others in a bed or border.

Having stamens but lacking pistils: staminate flowers

Botany. a prostrate stem, at or just below the surface of the ground, that produces new plants from buds at its tips or nodes.

a salt or ester of sulfuric acid

a dormant volcano. See Synonyms at inactive, latent.
In a condition of biological rest or inactivity characterized by cessation of growth or development and the suspension of many metabolic processes.

The general physical appearance of a rock, especially with respect to the size, shape, size variability, and geometric arrangement of its mineral crystals (for igneous and metamorphic rocks) and of its constituent elements (for sedimentary rocks). A sandstone that forms as part of an eolian (wind-blown) deposit, for example, has a texture that reflects its small, rounded sand grains of uniform size, while a sandstone that formed as part of a fluvial deposit has a texture reflecting the presence of grains of varying sizes, with some more rounded than others

a tightly bound layer of dead grass, including leaves, stems, and roots, that builds up on the soil surface at the base of the living grass of a lawn.

A garden having shrubs clipped or trimmed into decorative shapes especially of animals
2. Making decorative shapes by trimming shrubs or trees

Any of a wide variety of perennial plants typically having a single woody stem, and usually branches and leaves. Many species of both gymnosperms (notably the conifers) and angiosperms grow in the form of trees. The ancient forests of the Devonian, Mississippian, and Pennsylvanian periods of the Paleozoic Era were dominated by trees belonging to groups of seedless plants such as the lycophytes. The strength and height of trees are made possible by the supportive conductive tissue known as vascular tissue

a fleshy, usually oblong or rounded thickening or outgrowth, as the potato, of a subterranean stem or shoot, bearing minute scalelike leaves with buds or eyes in their axils from which new plants may arise.

The subjection of seeds or seedlings to low temperature in order to hasten plant development and flowering. Vernalization is commonly used for crop plants such as winter rye and is possible because the seeds and buds of many plants require cold in order to break dormancy

any plant having a long, slender stem that trails or creeps on the ground or climbs by winding itself about a support or holding fast with tendrils or claspers.

The thick xylem of trees and shrubs, resulting from secondary growth by the vascular cambium, which produces new layers of living xylem. The accumulated living xylem is the sapwood. The older, dead xylem in the interior of the tree forms the heartwood. Often each cycle of growth of new wood is evident as a growth ring. The main components of wood are cellulose and lignin

environmental design of residential and park land using various methods for minimizing the need for water use.