noun eryth·ro·cru·o·rin

Definition of erythrocruorin

  1. :  any of various red respiratory pigments that occur in blood, cells, or body fluids of several invertebrate animals and that are or are related to hemoglobins

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Origin and Etymology of erythrocruorin

erythr- + cruorin (old name for hemoglobin)

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to criticize severely

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