Definition of vitamin P in English:

vitamin P

noun

US
  • [mass noun] The bioflavonoids, regarded collectively as a vitamin.

    • ‘By its support of the capillaries, vitamin P helps to prevent hemorrhage and rupture of these tiny vessels, which could lead to easy bruising.’
    • ‘The bioflavanoids are sometimes called flavones and are also called vitamin P because of their effect on the permeability of capillaries.’
    • ‘The ‘bioflavonoids', or vitamin P, a complex that includes D-catechin and many other flavonoids, occur in grape juice in large amounts, especially in dark-skinned berries.’