vitamin

Từ điển WordNet v3.1 - WordNet Dictionary

noun

any of a group of organic substances essential in small quantities to normal metabolism (Freq. 3)
• Derivationally related forms:
vitaminize
• Hypernyms:
nutriment, nourishment, nutrition, sustenance, aliment,
alimentation, victuals
• Hyponyms:
fat-soluble vitamin, water-soluble vitamin
• Substance Holonyms:
multivitamin, multivitamin pill