A heat-labile and water-soluble vitamin contained in milk, yeast, and in the germ and husk of grains; also artificially synthesized; essential for growth; a deficiency of thiamin is associated with beriberi and Wernicke-Korsakoff syndrome. SYN: aneurine, antiberiberi factor, antiberiberi vitamin, antineuritic factor, antineuritic vitamin, thiamine, vitamin B1. [thia- + vitamin]
