Having the characteristics of sexual reproduction involving two separate parents.
From Ancient Greek 'amphi-' (both) + 'gonia' (generation), with Latin '-ous' suffix meaning 'having the quality of'. This adjective form was used interchangeably with 'amphigonic' in older biological literature.
The Greek 'amphi-' prefix is everywhere in science and medicine—it means 'both sides' and shows up in words like amphitheater, which literally surrounds audiences on both sides.
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