vitamin

As a noun vitamin

is vitamin.

As an adjective megavitamin is

involving megadoses of vitamins.

As a noun vitamin

is vitamin.

As an adjective vitaminlike is

resembling or characteristic of a vitamin.

As nouns the difference between vitamin and hydroxyvitamin

is that vitamin is vitamin while hydroxyvitamin is (biochemistry) any hydroxy derivative of a vitamin, but in practice a derivative of vitamin d that is measured in order to diagnose vitamin d deficiency.

As a noun vitamin

is vitamin.

As an adjective vitaminless is

devoid of vitamins.

As nouns the difference between vitamin and abetalipoproteinemia

is that vitamin is any of a specific group of organic compounds essential in small quantities for healthy human growth, metabolism, development, and body function; found in minute amounts in plant and animal foods or sometimes produced synthetically; deficiencies of specific vitamins produce specific disorders while abetalipoproteinemia is a rare autosomal recessive disorder that interferes with the normal absorption of fat and fat-soluble vitamins from food.

As nouns the difference between vitamin and nonvitamin

is that vitamin is vitamin while nonvitamin is a substance that is not a vitamin.

As an adjective nonvitamin is

not a vitamin.