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metaprotein

American  
[met-uh-proh-teen, -tee-in] / ˌmɛt əˈproʊ tin, -ti ɪn /

noun

Biochemistry.
  1. a hydrolytic derivative of protein, insoluble in water but soluble in dilute acids or alkalis.


Etymology

Origin of metaprotein

meta- + protein