fetus

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noun fe·tus \ˈfē-təs\

Definition of fetus

  1. :  an unborn or unhatched vertebrate especially after attaining the basic structural plan of its kind; specifically :  a developing human from usually two months after conception to birth — compare embryo 1b

Recent Examples of fetus from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'fetus.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Origin and Etymology of fetus

Middle English, from Latin, act of bearing young, offspring; akin to Latin fetus newly delivered, fruitful — more at feminine

Other Embryology Terms


FETUS Defined for English Language Learners

fetus

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noun

Definition of fetus for English Language Learners

  • : a human being or animal in the later stages of development before it is born


FETUS Defined for Kids

fetus

play
noun fe·tus \ˈfē-təs\

Definition of fetus for Students

  1. :  an animal not yet born or hatched but more developed than an embryo


Medical Dictionary

fetus

noun fe·tus
variants: or chiefly British

foetus

\ˈfēt-əs\play

Medical Definition of fetus

plural

fetuses

or chiefly British

foetuses

or

foeti

\ˈfēt-ˌī\play
  1. :  an unborn or unhatched vertebrate especially after attaining the basic structural plan of its kind; specifically :  a developing human from usually two months after conception to birth—compare embryo



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