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Definition of Vitamin P
1. Noun. A vitamin that maintains the resistance of cell and capillary walls to permeation.
Definition of Vitamin P
1. Noun. Any of the water soluble bioflavonoids that promotes the resistance of capillaries to permeation. ¹
2. Noun. (slang euphemistic) Prozac, an antidepressant. ¹
¹ Source: wiktionary.com
Medical Definition of Vitamin P
1. A mixture of bioflavonoids extracted from plants (especially citrus fruits). It reduces the permeability and fragility of capillaries and is useful in the treatment of certain cases of purpura that are resistant to vitamin C therapy. See: hesperidin, quercetin, rutin. Synonym: capillary permeability factor, citrin, permeability vitamin. (05 Mar 2000)