Topic: BIOLOGY
| Date: | 1300-1400 |
| Language: | Medieval Latin |
| Origin: | Greek embryon, from bryein 'to swell' |
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em‧bry‧o
plural embryos [countable]
plural embryos [countable]1MB an animal or human that has not yet been born, and has just begun to develop [↪ foetus]

The system already exists in embryo.