naphthoquinone Meaning, Definition & Usage

  1. noun a fat-soluble vitamin that helps in the clotting of blood
    vitamin K; antihemorrhagic factor.

WordNet

Naph`tho*qui"none noun
Etymology
Naphthalene + quinone.
Definitions
  1. (Chem.) A yellow crystalline substance, C10H6O2, analogous to quinone, obtained by oxidizing naphthalene with chromic acid.

Webster 1913