An older or alternative spelling of fibrin; the protein that forms blood clots.
This is an older English and European spelling of 'fibrin' (with the '-ine' ending), commonly used in 19th-century medical literature before modern standardization settled on 'fibrin'.
Old medical textbooks still use 'fibrine' and show that medical terminology went through standardization battles—eventually 'fibrin' won out because it's shorter and consistent with other protein names, but 'fibrine' persists in some European languages.
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