myoglobin

my·o·glo·bin  (m-glbn)

n.

A single-chain, iron-containing protein found in muscle fibers, structurally similar to a single subunit of hemoglobin and having a higher affinity for oxygen than hemoglobin of the blood.

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myoglobin  (m-glbn)

An iron-containing protein found in muscle fibers, consisting of heme connected to a single peptide chain that resembles one of the subunits of hemoglobin. Myoglobin combines with oxygen released by red blood cells and transfers it to the mitochondria of muscle cells, where it is used to produce energy.

Thesaurus

Noun

1.

myoglobin - a hemoprotein that receives oxygen from hemoglobin and stores it in the tissues until needed haemoprotein, hemoprotein - a conjugated protein linked to a compound of iron and porphyrin haem, haemitin, hematin, heme, protoheme - a complex red organic pigment containing iron and other atoms to which oxygen binds