thiamine

[ thahy-uh-min, -meen ]

/ ˈθaɪ ə mɪn, -ˌmin /

noun Biochemistry.

a white, crystalline, water-soluble compound of the vitamin-B complex, containing a thiazole and a pyrimidine group, C12H17ClN4OS, essential for normal functioning of the nervous system, a deficiency of which results chiefly in beriberi and other nerve disorders: occurring in many natural sources, as green peas, liver, and especially the seed coats of cereal grains, the commercial product of which is chiefly synthesized in the form of its chloride (thiamine chloride or thiamine hydrochloride) for therapeutic administration, or in nitrate form (thiamine mononitrate) for enriching flour mixes.

Nearby words

thi, thi-, thiabendazole, thiacetic acid, thiamin, thiamine, thiamine mononitrate, thiazide, thiazine, thiazole, thibault, jacques anatole

Also thi·a·min

[thahy-uh-min] /ˈθaɪ ə mɪn/.

Origin of thiamine

First recorded in 1905–10; thi- + amine

Also called vitamin B1, aneurin, aneurine.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for thiamine

thiamine

thiamin (ˈθaɪəmɪn)

/ (ˈθaɪəˌmiːn, -mɪn) /

noun

biochem a soluble white crystalline vitamin that occurs in the outer coat of rice and other grains. It forms part of the vitamin B complex and is essential for carbohydrate metabolism: deficiency leads to nervous disorders and to the disease beriberi. Formula: C 12 H 17 ON 4 SCl.H 2 OAlso: vitamin B 1, aneurin

Word Origin for thiamine

C20: thio- + (vit) amin

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for thiamine

thiamine

[ thī′ə-mĭn, -mēn′ ]

n.

A vitamin of the vitamin B complex, found in meat, yeast, and the bran coat of grains, and necessary for carbohydrate metabolism and normal neural activity.vitamin B1

Science definitions for thiamine

thiamine

[ thī′ə-mĭn ]

A water-soluble pyrimidine derivative belonging to the vitamin B complex that is important in carbohydrate metabolism and normal activity of the nervous system. It is found in pork, organ meats, whole grain cereals, legumes, and nuts. Deficiency of thiamine in the diet results in beriberi. Also called vitamin B1. Chemical formula: C12H17ClN4OS.