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hemin

American  
[hee-min] / ˈhi mɪn /

noun

Biochemistry.

  1. the typical, microscopic reddish-brown crystals, C 34 H 32 N 4 O 4 FeCl, resulting when a sodium chloride crystal, a drop of glacial acetic acid, and some blood are heated on a slide: used to indicate the presence of blood.

Etymology

Origin of hemin

First recorded in 1950–55; hem- + -in 2

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.