F f


    • US Pronunciation
    • US IPA
    • UK Pronunciation
    • UK IPA
    • [fee-tuh s]
    • /ˈfi təs/
    • /ˈfiː.təs/
    • US Pronunciation
    • US IPA
    • [fee-tuh s]
    • /ˈfi təs/

Definitions of fetus word

  • noun plural fetus (used chiefly of viviparous mammals) the young of an animal in the womb or egg, especially in the later stages of development when the body structures are in the recognizable form of its kind, in humans after the end of the second month of gestation. 1
  • noun fetus An unborn offspring of a mammal, in particular an unborn human baby more than eight weeks after conception. 1
  • noun fetus unborn baby 1
  • noun fetus the embryo of a mammal in the later stages of development, when it shows all the main recognizable features of the mature animal, esp a human embryo from the end of the second month of pregnancy until birth 0
  • noun fetus an unborn offspring of a vertebrate animal that is still in the uterus or egg, esp. in its later stages and specif., in humans, from about the eighth week after conception until birth 0
  • noun fetus (Canada, US) An unborn or unhatched vertebrate showing signs of the mature animal. 0

Information block about the term

Origin of fetus

First appearance:

before 1350
One of the 20% oldest English words
1350-1400; Middle English < Latin fētus bringing forth of young, hence that which is born, offspring, young still in the womb, equivalent to fē- (v. base attested in L only in noun derivatives, as fēmina woman, fēcundus fecund, etc.; compare Greek thēsthai to suck, milk, Old High German tāan to suck, Old Irish denid (he) sucks) + -tus suffix of v. action

Historical Comparancy

Parts of speech for Fetus


fetus popularity

A common word. It’s meaning is known to most children of preschool age. About 97% of English native speakers know the meaning and use the word.
Most Europeans know this English word. The frequency of it’s usage is somewhere between "mom" and "screwdriver".

fetus usage trend in Literature

This diagram is provided by Google Ngram Viewer

Synonyms for fetus

noun fetus

  • blastosphere — blastula
  • blastula — an early form of an animal embryo that develops from a morula, consisting of a sphere of cells with a central cavity
  • embryo — An unborn or unhatched offspring in the process of development.

Top questions with fetus

  • what is a fetus?
  • what does fetus mean?
  • when does a fetus have a heartbeat?
  • when can a fetus hear?
  • when is a fetus viable?
  • when does a fetus heart start beating?
  • when does an embryo become a fetus?
  • what is fetus?
  • when is a baby considered a fetus?
  • when does a fetus heart beat?
  • when is a fetus considered a baby?
  • when does fetus heart start beating?
  • when can fetus hear?
  • when does a fetus get a heartbeat?
  • when is a fetus considered a human?

See also

Matching words

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