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holly

(Encyclopedia) holly, common name for members of the Aquifoliaceae, a family of widely distributed trees and shrubs, most numerous in Central and South America. The evergreen English holly (Ilex…

chlamydia

(Encyclopedia) chlamydiachlamydiakləmĭdˈēə [key], genus of microorganisms that cause a variety of diseases in humans and other animals. Psittacosis, or parrot fever, caused by the species Chlamydia…

mountain ash, in botany

(Encyclopedia) mountain ash, name for any species of the genus Sorbus of the family Rosaceae (rose family), hardy ornamental trees and shrubs native to the Northern Hemisphere, not related to the…

case

(Encyclopedia) case, in language, one of the several possible forms of a given noun, pronoun, or adjective that indicates its grammatical function (see inflection); in inflected languages it is…

sucker

(Encyclopedia) sucker, common name for members of the family Catostomidae, freshwater fish related to the minnows. Like minnows and the less closely related catfishes, the suckers possess an…

turkey , in zoology

(Encyclopedia) turkey, common name for a large game and poultry bird related to the grouse and the pheasant. Its name derives from its “turk-turk” call. Turkeys are indigenous to the New World;…

triggerfish

(Encyclopedia) triggerfish, any of several species of tropical reef fishes with laterally compressed bodies, heavy scales, and tough skins. They are named for the mechanism of the three spines of the…

piculet

(Encyclopedia) piculetpiculetpĭkˈyələt [key], common name for a small bird of the family Picidae, which includes the woodpecker and the wryneck. Like the true woodpeckers, piculets are large-headed…

pinworm

(Encyclopedia) pinworm, roundworm, Enterobius vermicularis, worldwide in distribution and the most common source of worm infestation of humans in the United States. Children are more commonly…

Organization of African Unity

(Encyclopedia) Organization of African Unity (OAU), former international organization, established 1963 at Addis Ababa, Ethiopia, by 37 independent African nations to promote unity and development;…