D defs.my
Entry 1 sense Webster, 1913

vitamin K3

· IPA
01 n. menadione, (C11H8O2) being chemically 2-methyl-1,4,-naphthoquinone. Having no side chain in the 3 position, it cannot exert all functions …
  1. 1.
    menadione, (C11H8O2) being chemically 2-methyl-1,4,-naphthoquinone. Having no side chain in the 3 position, it cannot exert all functions of a true K vitamin and the designation as vitamin K3 has been discouraged
Syn. vitaminK2(0); menaphthone.