Resembling a protein; possessing, to some degree, the physicochemical properties characteristic of proteins.
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pro·tein·aceous .prōt-ən-'ā-shəs, .prō-.tēn-, .prōt-ē-ən- adj of, relating to, resembling, or being protein <\proteinaceous materials>
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pro·tein·a·ceous (pro″tēn-aґshəs) pertaining to, of the nature of, or consisting of protein.Medical dictionary. 2011.