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toothfish

(Encyclopedia) toothfish, common name for a genus (Dissostichus) of deep-water marine ray-finned fishes found in waters off S South America to Antarctica. The Patagonian toothfish, D. eleginoides, is…

molting

(Encyclopedia) molting, periodical shedding and renewal of the outer skin, exoskeleton, fur, or feathers of an animal. In most animals the process is triggered by secretions of the thyroid and…

mesquite, in botany

(Encyclopedia) mesquitemesquitemĭskētˈ, mĕsˈkēt [key], any plant of the genus Prosopis, leguminous spiny trees or shrubs of the family Leguminosae (pulse family), native to tropical and subtropical…

hippopotamus

(Encyclopedia) hippopotamus, herbivorous, river-living mammal of tropical Africa. The large hippopotamus, Hippopotamus amphibius, has a short-legged, broad body with a tough gray or brown hide. The…

sale, in law

(Encyclopedia) sale, in law, transfer of ownership in return for money. An exchange of goods for goods is termed barter, but the distinction between sale and barter is mainly technical; laws that…

Biosphere 2

(Encyclopedia) Biosphere 2, privately funded ecological research project in which eight people lived sealed in a 3.15-acre (1.28-hectare) structure for two years (Sept. 26, 1991–Sept. 26, 1993).…

leech

(Encyclopedia) leech, predacious or parasitic annelid worm of the class Hirudinea, characterized by a cylindrical or slightly flattened body with suckers at either end for attaching to prey. The…

rush

(Encyclopedia) rush, name for tall, grasslike plants of various families, many of which have hollow stems. The true rushes belong to the family Juncaceae, one of the oldest families of plants,…

evening primrose

(Encyclopedia) CE5 Evening primrose, Oenothera biennis evening primrose, common name for the Onagraceae, a family of plants of worldwide distribution, most species of which grow as herbs in the…

black market

(Encyclopedia) black market, the selling or buying of commodities at prices above the legal ceiling or beyond the amount allotted to a customer in countries that have placed restrictions on sales and…