from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A vitamin, C12H17ClN4OS, of the vitamin B complex, found in meat, yeast, and the bran coat of grains, and necessary for carbohydrate metabolism and normal neural activity. Also called vitamin B1.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. One of the constituents of vitamin B complex, found in meat, yeast and bran, that is necessary for the metabolism of carbohydrates.
from The Century Dictionary and Cyclopedia
- n. A class-name applied in organic chemistry to compounds containing the group RNHSH, where R is a hydrocarbon radical such as ethyl (C2H5).
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a B vitamin that prevents beriberi; maintains appetite and growth
Alteration of thiamin : thi(o)- + (vit)amin.(American Heritage® Dictionary of the English Language, Fourth Edition)