vitamin B complex

noun

1. an important group of water-soluble vitamins containing vitamin B 1 , vitamin B 2 , etc.

vitamin B complex

noun

1. Sometimes shortened to: B complex. a large group of water-soluble vitamins occurring esp in liver and yeast: includes thiamine, riboflavin, nicotinic acid, pyridoxine, pantothenic acid, biotin, choline, folic acid, and cyanocobalamin

vitamin B complex

1. Any of a group of water-soluble vitamins important for normal cell growth and metabolism. The vitamins of the vitamin B complex include thiamine (vitamin B ₁), riboflavin (vitamin B ₂), pyridoxine (vitamin B ₆), cobalamin (vitamin B ₁₂), pantothenic acid, niacin, biotin, and folic acid.

Word History and Origins

Origin of vitamin B complex¹

First recorded in 1925–30