hemocyanin

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

noun Biochemistry.

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

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Origin of hemocyanin

First recorded in 1835–45; hemo- + cyan-1 + -in2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020