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Classic usage
Reading level: hard
Estimated CEFR level: C2 — Proficiency
Estimated from word frequency; not an official CEFR classification.
From Medieval Latin heterogeneus, from Ancient Greek ἑτερογενής (heterogenḗs, “of different kinds”), from ἕτερος (héteros, “other, another, different”) + γένος (génos, “kind”). Compare hetero- and -ous.
heterogenous
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Classic usage
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