n. (pl. -os)
1. a an unborn or unhatched offspring. b a human offspring in the first eight weeks from conception.
2 a rudimentary plant contained in a seed.
3 a thing in a rudimentary stage.
4 (attrib.) undeveloped, immature.
Phrases and idioms:
in embryo undeveloped.
Derivatives:
embryoid adj. embryonal adj. embryonic adj. embryonically adv.
Etymology: LL embryo -onis f. Gk embruon foetus (as EN-(2), bruo swell, grow)