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histology

(Encyclopedia) histologyhistologyhĭstŏlˈəjē [key], study of the groups of specialized cells called tissues that are found in most multicellular plants and animals. Histologists study the organization…

Modoc

(Encyclopedia) ModocModocmōˈdŏk [key], Native North Americans whose language belongs to the Sahaptin-Chinook branch of the Penutian linguistic stock (see Native American languages). They formerly…

Madonna

(Encyclopedia) Madonna (Madonna Louise Ciccone) Madonna mədŏnˈə, chĭkōˈnē [key], 1958…

collagen

(Encyclopedia) collagencollagenkŏlˈəjən [key], any of a group of proteins found in skin, ligaments, tendons, bone and cartilage, and other connective tissue. Cells called fibroblasts form the various…

computer terminal

(Encyclopedia) computer terminal, a device that enables a computer to receive or deliver data. Computer terminals vary greatly depending on the format of the data they handle. For example, a simple…

Watson, James Dewey

(Encyclopedia) Watson, James Dewey, 1928–, American biologist and educator, b. Chicago, Ill., grad. Univ. of Chicago, 1947, Ph.D. Univ. of Indiana, 1950. With F. H. C. Crick he began (1951) research…

Chordata

(Encyclopedia) CE5 Common features in representative groups of the phylum Chordata ChordataChordatakôrdāˈtə, –däˈ– [key], phylum of animals having a notochord, or dorsal stiffening rod, as the…

actinium

(Encyclopedia) actiniumactiniumăktĭnˈēəm [key] [Gr.,=like a ray], radioactive chemical element; symbol Ac; at. no. 89; mass number of most stable isotope 227; m.p. about 1,050℃; b.p. 3,200℃±300℃; sp…

Perot, H. Ross

(Encyclopedia) Perot, H. Ross (Henry Ross Perot), 1930–2019, American business executive and political leader, b. Texarkana, Tex., as Henry Ray Perot, grad. Annapolis, 1953. In 1957 he resigned his…

Carver, Raymond

(Encyclopedia) Carver, Raymond, 1938–88, American short-story writer, b. Clatskanie, Oreg. He was raised in the Pacific Northwest, where he often set his sparely written tales of everyday blue-collar…