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Jesse
(Encyclopedia)Jesse jĕsˈē [key], in the Bible, the descendant of Rahab, the grandson of Boaz and Ruth, and the father of David. Referring to the restoration of the Davidic monarchy, the Book of Isaiah speaks of ...vegetative propagation
(Encyclopedia)vegetative propagation, the ability of plants to reproduce without sexual reproduction, by producing new plants from existing vegetative structures. Some plants, such as the Canada thistle and most ba...brier
(Encyclopedia)brier or briar, name sometimes given any thorny plant, more specifically the sweetbrier, and the greenbrier. French brier, or brierroot, is a name for the root of the European white heath so widely us...carbonated beverage
(Encyclopedia)carbonated beverage, an effervescent drink that releases carbon dioxide under conditions of normal atmospheric pressure. Carbonation may occur naturally in spring water that has absorbed carbon dioxid...cultivation
(Encyclopedia)cultivation, tilling or manipulation of the soil, done primarily to eliminate weeds that compete with crops for water and nutrients. Cultivation may be used in crusted soils to increase soil aeration ...mandrake
(Encyclopedia)mandrake, plant of the family Solanaceae (nightshade family), the source of a narcotic much used during the Middle Ages as a pain-killer and perhaps the subject of more superstition than any other pla...ginger
(Encyclopedia)ginger, common name for members of the Zingiberaceae, a family of tropical and subtropical perennial herbs, chiefly of Indomalaysia. The aromatic oils of many are used in making condiments, perfumes, ...meristem
(Encyclopedia)meristem mĕrˈistĕmˌ [key], a specialized section of plant tissue characterized by cell division and growth. Much of the mature plant's growth is provided by meristems. Apical meristems found at th...exponent
(Encyclopedia)exponent, in mathematics, a number, letter, or algebraic expression written above and to the right of another number, letter, or expression called the base. In the expressions x2 and xn, the number 2 ...pi
(Encyclopedia)pi, in mathematics, the ratio of the circumference of a circle to its diameter. The symbol for pi is π. The ratio is the same for all circles and is approximately 3.1416. It is of great importance in...Browse by Subject
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