'Methaemoglobin' definitions:

Definition of 'Methaemoglobin'

From: GCIDE

Methaemoglobin \Met`haem*o*glo"bin\ (? or ?), n. [Pref. met- + haemoglobin.] (Physiol. Chem.) A stable crystalline compound obtained by the decomposition of hemoglobin. It is found in old blood stains. [1913 Webster] methadon