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

12 February 2025

MEGACOLON

(noun) an abnormal enlargement of the colon; can be congenital (as in Hirschsprung’s disease) or acquired (as when children refuse to defecate)


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Coffee Trivia

The word “coffee” entered the English language in 1582 via the Dutch “koffie,” borrowed from the Ottoman Turkish “kahve,” borrowed in turn from the Arabic “qahwah.” The Arabic word qahwah was traditionally held to refer to a type of wine.

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