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tubercle

(Encyclopedia)tubercle to͞oˈbərkyo͞olˌ [key] [Lat.,=little swelling], small, usually solid, nodule or prominence. In anatomy the term is applied to natural prominences in certain muscles, to nerve nuclei of th...

Hercules, in astronomy

(Encyclopedia)Hercules hûrˈkyəlēzˌ [key], in astronomy, northern constellation located between Lyra and Corona Borealis. It is traditionally depicted as the hero Hercules in a kneeling position. There are no v...

infectious canine hepatitis

(Encyclopedia)infectious canine hepatitis, acute viral disease of canines, especially dogs and foxes. The causative agent, an adenovirus, is not infectious to humans. In foxes the disease is manifested primarily as...

Strand, Mark

(Encyclopedia)Strand, Mark, 1934–2014, American poet, b. Prince Edward Island, Canada, grad. Antioch College (B.A., 1957), Yale (B.F.A., 1959), Iowa Writers' Workshop (M.A., 1962). Meditative and death-haunted, h...

Strickland, Donna Theo

(Encyclopedia)Strickland, Donna Theo, 1959–, Canadian physicist, Ph.D. Univ. of Rochester, New York, 1989. Strickland held research positions at the National Research Council of Canada in Ottawa from 1988 to 1991...

Centaurus

(Encyclopedia)Centaurus sĕntôrˈəs [key], southern constellation located N and E of Crux, the Southern Cross. It is known especially for its bright stars Alpha Centauri and Hadar. It also contains Centaurus A, a...

reading, mental process

(Encyclopedia)reading, process of mentally interpreting written symbols. Facility in reading is an essential factor in educational progress, and instruction in this basic skill is a primary purpose of elementary ed...

star cluster

(Encyclopedia)star cluster, a group of stars near each other in space and resembling each other in certain characteristics that suggest a common origin for the group. Stars in the same cluster move at the same rate...

Noland, Kenneth

(Encyclopedia)Noland, Kenneth nōˈlənd [key], 1924–2010, American painter, b. Asheville, N.C. An outstanding colorist, Noland was one of the best-known exponents of the abstract painting movement known as color...

Lyra

(Encyclopedia)Lyra līˈrə [key] [Lat.,=the lyre], northern constellation lying S of Draco, E of Hercules, and W of Cygnus. Although many civilizations represented it as a bird, it was also depicted as a tortoise....