D defs.my
Entry 1 sense Webster, 1913

citrin

· IPA /sˈɪtrɪn/
01 n. a vitamin that maintains the resistance of cell and capillary walls to permeation; -- called also vitamin P.
  1. 1.
    a vitamin that maintains the resistance of cell and capillary walls to permeation; -- called also vitamin P. Also: vitamin P