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Pronunciation: fe'tus, fe'tus-ez


  1. The unborn young of a viviparous animal following the embryonic period.
  2. In humans, the product of conception from the end of the eighth week of gestation to the moment of birth.

[L. offspring]

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.