Protoheme

noun

noun ·Rare ·Advanced level

Definitions

Noun

1
A synonym for any of several hemes (followed by a letter)
2
a complex red organic pigment containing iron and other atoms to which oxygen binds wordnet

Synonyms

haem haematin hematin heme heme

Etymology

From proto- + heme.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.