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hemocyanin

American  
[hee-muh-sahy-uh-nin, hem-uh-] / ˌhi məˈsaɪ ə nɪn, ˌhɛm ə- /

noun

Biochemistry.
  1. a blue, copper-containing respiratory pigment in the plasma of many invertebrates.


Etymology

Origin of hemocyanin

First recorded in 1835–45; hemo- + cyan- 1 + -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.

See Examples For:

Their blood gets that blue-green tint from hemocyanin, which they use instead of hemoglobin to carry oxygen.

From New York Times Jul. 9, 2021

Consequently, for creatures like octopuses and crabs that live on or near the cold ocean floor, hemocyanin may be a more practical choice.

From Scientific American May 6, 2019

Insects, crustaceans and other arthropods use hemocyanin, a bluish copper-based pigment.

From Scientific American May 6, 2019

From octopus blood he extracted hemocyanin, a protein that picks up copper because its molecule has a structure that a copper ion fits into neatly, like a key into a lock.

From Time Magazine Archive

It seems odd to us—but those people evidently have their blood based on hemocyanin.

From The Black Star Passes by John Wood Campbell

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