HEME
heme, haem, hematin, haemitin, protoheme
(noun) a complex red organic pigment containing iron and other atoms to which oxygen binds
Source: WordNet® 3.1
Etymology
Noun
heme (countable and uncountable, plural hemes)
(biochemistry) The component of hemoglobin (and other hemoproteins) responsible for binding oxygen. It consists of an iron ion that binds oxygen and a porphyrin ring that binds the globin molecules; one molecule binds one molecule of oxygen.
Source: Wiktionary
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Word of the Day
14 March 2025
PARASITISM
(noun) the relation between two different kinds of organisms in which one receives benefits from the other by causing damage to it (usually not fatal damage)
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