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The Collaborative International Dictionary
Hemiprotein

Hemiprotein \Hem`i*pro"te*in\, n. [Hemi- + protein.] (Physiol. Chem.) An insoluble, proteid substance, described by Sch["u]tzenberger, formed when albumin is heated for some time with dilute sulphuric acid. It is apparently identical with antialbumid and dyspeptone.

Wiktionary
hemiprotein

n. (context biochemistry English) An insoluble proteid substance formed when albumin is heated for some time with dilute sulphuric acid, and apparently identical with antialbumid and dyspeptone.