\pɹˈə͡ʊtɪd], \pɹˈəʊtɪd], \p_ɹ_ˈəʊ_t_ɪ_d]\
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One of a class of amorphous nitrogenous principles, containing, as a rule, a small amount of sulphur; an albuminoid, as blood fibrin, casein of milk, etc. Proteids are present in nearly all animal fluids and make up the greater part of animal tissues and organs. They are also important constituents of vegetable tissues. See 2d Note under Food.
By Oddity Software
By Stedman, Thomas Lathrop
By Henderson, I. F.; Henderson, W. D.
By Willam Alexander Newman Dorland