1. a simple water-soluble protein found in many animal tissues and liquids • Syn: albumin • Derivationally related forms: albuminous (for: albumin) • Hypernyms: simple protein • Hyponyms: ricin, ricin toxin, lactalbumin, serum albumin 2. the white part of an egg; the nutritive and protective gelatinous substance surrounding the yolk consisting mainly of albumin dissolved in water - she separated the whites from the yolks of several eggs • Syn: egg white, white, ovalbumin • Hypernyms: ingredient, fixings • Part Holonyms: egg, eggs