globin

American

[gloh-bin] / ˈgloʊ bɪn /

noun

Biochemistry.

the protein component of hemoglobin, made up of alpha and beta chains.

globin British

/ ˈɡləʊbɪn /

noun

biochem the protein component of the pigments myoglobin and haemoglobin

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of globin

1875–80; < Latin glob ( us ) globe, sphere + -in ²

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

One key target is the fetal globin gene, which helps deliver oxygen before birth.

From Science Daily • Jan. 5, 2026

The globin chains produced are too long to form functional hemoglobin.

From Textbooks • Jun. 9, 2022

Even Linus Pauling, who famously discovered that sickle cell was caused by the substitution of a single amino acid in the globin protein, was part of this dismal history.

From New York Times • Dec. 28, 2021

But that gene, the adult globin gene, is the one that can carry a sickle cell mutation.

From Seattle Times • Sep. 14, 2021

By a dilute acid haemoglobin is decomposed into globin, and ``haematin,'' a ferri-pyrrol derivative of the probable formula C34H34N4FeO5; under certain conditions the iron-free ``haematoporphyrin'' is obtained.

From The Project Gutenberg Encyclopedia Volume 1 of 28 by Project Gutenberg

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