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ameba

(Encyclopedia)ameba or amoeba both: əmēˈbə [key], common name for certain one-celled organisms belonging to the phylum Sarcodina of the kingdom Protista. Amebas were previously classified as members of the anim...

mitosis

(Encyclopedia)CE5 Mitosis in a body cell of an animal mitosis mītōˈsĭs, mĭ– [key], process of nuclear division in a living cell by which the carriers of hereditary information, or the chromosomes, are ex...

sacrifice

(Encyclopedia)sacrifice [Lat. sacrificare=to make holy], a type of religious offering, or gift to a superior or supreme being, in which the offering is consecrated through its destruction. The Paleolithic evidenc...

dolphin, fish

(Encyclopedia)dolphin, large, swift game fish, Coryphaena hippurus, also called dorado. It is of nearly worldwide distribution in warm waters. Its long, slender body is blue, and in the living animal there are lumi...

Dandie Dinmont terrier

(Encyclopedia)Dandie Dinmont terrier dănˈdē dĭnˈmŏnt [key], breed of hardy, long-bodied terrier developed in England and Scotland and first recorded as a distinct type in the very early 18th cent. It stands f...

civilization

(Encyclopedia)civilization, culture with a relatively high degree of elaboration and technical development. The term civilization also designates that complex of cultural elements that first appeared in human histo...

Claude, Albert

(Encyclopedia)Claude, Albert älbârrˈ klōd [key], 1899–1983, Belgian biologist, b. Longlier, M.D., Univ. of Liège, 1928. He joined the Rockefeller Institute (now Rockefeller Univ.) in 1929 and spent his entir...

Chaetognatha

(Encyclopedia)CE5 Anatomy of an arrow worm, Sagitta, representative of the phylum Chaetognatha Chaetognatha kētôgnăthˈə [key], phylum of predominantly pelagic marine animals commonly known as arrowworms. A...

chamois

(Encyclopedia)chamois shămˈē [key], hollow-horned, hoofed mammal, Rupicapra rupicapra, found in the mountains of Europe and the E Mediterranean. It is about the size of a large goat and is light brown with a bla...

hydrogen sulfide

(Encyclopedia)hydrogen sulfide, chemical compound, H2S, a colorless, extremely poisonous gas that has a very disagreeable odor, much like that of rotten eggs. It is slightly soluble in water and is soluble in carbo...