n. any of a group of organic substances essential in small quantities to normal metabolism
词态变化
复数形式:vitamins
常见例句
1
n tropical American shrub bearing edible acid red fruit resembling cherries n acid red or yellow cherry-like fruit of a tropical American shrub very rich in vitamin C
2
n a B vitamin that is essential for metabolism of amino acids and starch
3
n a B vitamin that prevents beriberi
4
used to specify wavelengths of electromagnetic radiation n any of several fat-soluble vitamins essential for normal vision
5
any of several diseases caused by deficiency of one or more vitamins
