Columbia Encyclopedia

Search results

323 results found

narcosis

(Encyclopedia)narcosis närkōˈsĭs [key], state of stupor induced by drugs. The use of narcotics as a therapeutic aid in psychiatry is believed to have a history dating back to the use of opium for mental disorde...

Kornberg, Roger David

(Encyclopedia)Kornberg, Roger David, 1947–, American biochemist, b. St. Louis, Mo., Ph.D. Stanford, 1972; son of Arthur Kornberg. Kornberg held academic posts at Cambridge (1972–76) and Harvard (1976–78) befo...

Zinkernagel, Rolf Martin

(Encyclopedia)Zinkernagel, Rolf Martin, 1944–, Swiss immunologist, grad. Univ. of Basel (M.D., 1968), Australian National Univ. (Ph.D., 1975). He has been a professor at the Univ. of Zürich since 1979. Zinkernag...

sex therapy

(Encyclopedia)sex therapy, treatment of sexual disorders and dysfunction, including impotence, orgasmic dysfunction, vaginismus (spasm of the muscles of the vagina), premature ejaculation, and lack of sexual respon...

Schekman, Randy Wayne

(Encyclopedia)Schekman, Randy Wayne, 1948–, American cell biologist, b. St. Paul, Minn. Ph.D. Stanford, 1974. He is a professor (since 1976) at the Univ. of California, Berkeley, and an investigator of the Howard...

pilocarpine

(Encyclopedia)pilocarpine pīlōkärˈpēn [key], naturally occurring alkaloid obtained from plants of the genus Pilocarpus (family Rutaceae). By mimicking the effects of acetylcholine, pilocarpine acts as a stimul...

fruit bat

(Encyclopedia)fruit bat, fruit-eating bat found in tropical regions of the Old World. It is relatively large and differs from other bats in the possession of an independent, clawed second digit; it also depends on ...

acetaminophen

(Encyclopedia)acetaminophen əsētˌəmĭnˈəfĭn [key], an analgesic and fever-reducing medicine. It is an active ingredient in many over-the-counter medicines, including Tylenol and Midol. Introduced in the earl...

necrotizing fasciitis

(Encyclopedia)necrotizing fasciitis, a quickly progressing infection of the skin that spreads along the fascia, the tissue that covers the muscles. (Necrotizing infections that spread along the outer skin layers ar...

numbat

(Encyclopedia)numbat nŭmˈbăt [key], small marsupial, of SW Australia, also known as the marsupial anteater. The numbat, Myrmecobius fasciatus, resembles a squirrel in size and general appearance, but is adapted ...