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thyrotropin

(Encyclopedia)thyrotropin thīˌrätrōˈpĭn [key] or thyroid-stimulating hormone (TSH), hormone released by the anterior pituitary gland that stimulates the thyroid gland to release thyroxine. The release of thyr...

isinglass

(Encyclopedia)isinglass īˈzənglăsˌ [key], gelatinous semitransparent substance obtained by cleaning and drying the air bladders of the sturgeon, cod, hake, and other fishes. Isinglass is manufactured in Russia...

tamarisk

(Encyclopedia)tamarisk tămˈərĭsk [key], shrub or small tree of the genus Tamarix, native chiefly to the Mediterranean area and to central Asia. The plants are often heathlike and thrive in arid and coastal regi...

Kochi, city, Japan

(Encyclopedia)Kochi kōˈchē [key], city (1990 pop. 317,069), capital of Kochi prefecture, S Shikoku, Japan. From its port, Urado, the city exports dried bonito, ornamental coral, cement, and paper. Kochi prefectu...

monkey-puzzle tree

(Encyclopedia)monkey-puzzle tree, evergreen tree (Araucaria araucana) native to Chile and widely cultivated elsewhere as an ornamental. The symmetrical branches have an unusual angularity and are completely covered...

gallic acid

(Encyclopedia)gallic acid or 3,4,5-trihydroxybenzoic acid trīˌhīdrŏkˈsēbĕnzōˈĭk [key], C6H2(OH)3CO2H, colorless crystalline organic acid found in gallnuts, sumach, tea leaves, oak bark, and many other pla...

Fischer, Hans

(Encyclopedia)Fischer, Hans, 1881–1945, German organic chemist, Ph.D. Univ. of Marburg, 1904; M.D. Univ. of Munich, 1908. Fischer was a professor at the Univ. of Innsbruck from 1916 to 1918 and at the Univ. of Vi...

calcite

(Encyclopedia)calcite kălˈsīt [key], very widely distributed mineral, commonly white or colorless, but appearing in a great variety of colors owing to impurities. Chemically it is calcium carbonate, CaCO3, but i...

quarrying

(Encyclopedia)quarrying, open, or surface, excavation of rock used for various purposes, including construction, ornamentation, road building, and as an industrial raw material. Rock that has been quarried is commo...

cabbage

(Encyclopedia)cabbage, leafy garden vegetable of many widely dissimilar varieties, all probably descended from the wild, or sea, cabbage (Brassica oleracea) of the family Cruciferae (or Brassicaceae; mustard family...