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Cannizzaro, Stanislao

(Encyclopedia)Cannizzaro, Stanislao stänēsläˈō kän-nēt-tsäˈrō [key], 1826–1910, Italian chemist. From 1861 he was professor at Palermo and from 1871 at Rome, where he was also a member of the senate and...

tamarind

(Encyclopedia)tamarind tămˈərĭnd [key], tropical ornamental evergreen tree (Tamarindus indica) of the family Leguminosae (pulse family), native to Africa and probably to Asia, but now widely grown in the tropic...

bromide

(Encyclopedia)bromide, any of a group of compounds that contain bromine and a more electropositive element or radical. Bromides are formed by the reaction of bromine or a bromide with another substance; they are wi...

Roethke, Theodore

(Encyclopedia)Roethke, Theodore rĕtˈkə [key], 1908–63, American poet, b. Saginaw, Mich., educated at the Univ. of Michigan and Harvard. A poet of the Midwest, Roethke combined a love of the land with his visio...

rosin

(Encyclopedia)rosin or colophony, hard, brittle, translucent resin, obtained as a solid residue from crude turpentine. Usually pale yellow or amber, its color may vary from brownish-black to transparent depending o...

cysteine

(Encyclopedia)CE5 CE5 cysteine sĭsˈtēn [key], organic compound, one of the 20 amino acids commonly found in animal proteins. Only the l-stereoisomer participates in the biosynthesis of mammalian protein...

Dulbecco, Renato

(Encyclopedia)Dulbecco, Renato rənätˈō dŭlbĕkˈō [key], 1914–2012, Italian-American virologist, b. Catanzaro, Italy. In 1947 he came to the United States to work with Salvador Luria at Indiana Univ. in Blo...

Nematoda

(Encyclopedia)Nematoda nĕmˌətōdˈə [key], phylum consisting of about 12,000 known species, and many more predicted species, of worms (commonly known as roundworms or threadworms). Nematodes live in the soil an...

AZT

(Encyclopedia)AZT or zidovudine zīdōˈvyo͞odēnˌ [key], drug used to treat patients infected with the human immunodeficiency virus (HIV), which causes AIDS; also called azidothymidine. Originally developed in 1...

Pygmy

(Encyclopedia)Pygmy or Pigmy both: pĭgˈmē [key], term used for dark-skinned people who live in equatorial rain forests and average less than 59 in. (150 cm) in height. Some studies make a distinction between Neg...