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A complex red organic pigment containing iron and other atoms to which oxygen binds
Answer for the clue "A complex red organic pigment containing iron and other atoms to which oxygen binds ", 9 letters:
protoheme
Word definitions for protoheme in dictionaries
WordNet
Word definitions in WordNet
n. a complex red organic pigment containing iron and other atoms to which oxygen binds [syn: heme , haem , hematin , haemitin ]
Wiktionary
Word definitions in Wiktionary
n. (context biochemistry followed by a Roman numeral English) A synonym for any of several hemes (followed by a letter)