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photosynthesis

(Encyclopedia)photosynthesis fōˌtōsĭnˈthəsĭs [key], process in which green plants, algae, and cyanobacteria utilize the energy of sunlight to manufacture carbohydrates from carbon dioxide and water in the pr...

Fracastoro, Girolamo

(Encyclopedia)Fracastoro, Girolamo jērôˈlämō fräkästôˈrō [key], 1483–1553, Italian physician and poet. He was born in Verona, where he practiced after studying at Padua. He studied epidemic diseases and...

Vernon, city, Canada

(Encyclopedia)Vernon, city (1991 pop. 23,514), S British Columbia, Canada, near the north end of Okanagan Lake. The center of a fruit-growing and dairying area, it has packing and dehydrating plants. There are lumb...

botanical garden

(Encyclopedia)botanical garden, public place in which plants are grown both for display and for scientific study. An arboretum is a botanical garden devoted chiefly to the growing of woody plants. The plants in bot...

blood count

(Encyclopedia)blood count, method for determining the number of red (erythrocytes) and white (leukocytes) blood cells in a certain volume of blood. This test can be used as a preliminary step in diagnosing some dis...

sex

(Encyclopedia)sex, term used to refer both to the two groups distinguished as males and females, and to the anatomical and physiological characteristics associated with maleness and femaleness. Sex relates to the t...

evergreen

(Encyclopedia)evergreen, term commonly used as synonymous with conifer and applied also to all those broad-leaved plants that bear green leaves throughout the year. Of the latter, most are plants of the tropics, su...

dermatology

(Encyclopedia)dermatology dûrmətŏlˈəjē [key], branch of medicine concerned with diagnosis and treatment of diseases and disorders of the skin. Dermatologists also study the structure and function of the skin,...

trypanosome

(Encyclopedia)trypanosome trĭpˈənəsōmˌ [key], microscopic, one-celled protozoan of the genus Trypanosoma, typically living as an active parasite in the bloodstream of a vertebrate; hundreds of species are kno...

workers' compensation

(Encyclopedia)workers' compensation, payment by employers for some part of the cost of injuries, or in some cases of occupational diseases, received by employees in the course of their work. The degree of responsib...