respiratory pigment

noun

Definition of respiratory pigment 

: any of various permanently or intermittently colored conjugated proteins and especially hemoglobin that function in the transfer of oxygen in cellular respiration

First Known Use of respiratory pigment

1888, in the meaning defined above

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The first known use of respiratory pigment was in 1888

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respiratory pigment

noun

Medical Definition of respiratory pigment 

: any of various permanently or intermittently colored conjugated proteins and especially hemoglobin that function in the transfer of oxygen in cellular respiration

More from Merriam-Webster on respiratory pigment

Britannica.com: Encyclopedia article about respiratory pigment

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