fetus

See also: foetus and fétus

English
A fetus at eight weeks from conception

Alternative forms

Etymology

Borrowed from Latin fētus (“offspring”).

Pronunciation
  • IPA(key): /ˈfiːtəs/
  • Rhymes: -iːtəs

Noun

fetus (plural fetuses or feti)

  1. (Canada, US) An unborn or unhatched vertebrate showing signs of the mature animal.
    • 1963, John W Choate, ‎Henry A. Thiede, University of Rochester School of Medicine and Dentistry, Transcript, Volume 2
      Several feti were removed from every rats' uterus, stripped of their membranes and allowed to lie in the peritoneal cavity connected to the placenta by the umbilical cord and with the placenta still attached to the uterine wall.
  2. (Canada, US) A human embryo after the eighth week of gestation.
    The sequence is: molecules in reproductive systems, then gametes, zygotes, morulas, blastocysts, and then fetuses.

Usage notes
  • The form fetus is preferred in North America and in the scientific community, whereas foetus is still commonly used in Commonwealth nations.

Derived terms

Translations

See also

References

Anagrams

Latin

Alternative forms

Etymology

From Proto-Indo-European *dʰeh₁(y)-, see also Sanskrit धयति (dhayati), Avestan 𐬛𐬀𐬉𐬥𐬎‎ (daēnu), Old Armenian դիեմ (diem), Lithuanian žįsti and Old Church Slavonic доити (doiti).

Pronunciation
  • (Classical) IPA(key): /ˈfeː.tus/, [ˈfeː.tʊs]

Adjective

fētus (feminine fēta, neuter fētum); first/second declension

  1. pregnant, full of young
  2. fruitful, productive
  3. youthful, young
  4. of one who has recently given birth; nursing

Inflection

First/second declension.

Number Singular Plural
Case / Gender Masculine Feminine Neuter Masculine Feminine Neuter
Nominative fētus fēta fētum fētī fētae fēta
Genitive fētī fētae fētī fētōrum fētārum fētōrum
Dative fētō fētae fētō fētīs fētīs fētīs
Accusative fētum fētam fētum fētōs fētās fēta
Ablative fētō fētā fētō fētīs fētīs fētīs
Vocative fēte fēta fētum fētī fētae fēta

References

Noun

fētus m (genitive fētūs); fourth declension

  1. A bearing, birth, bringing forth.
  2. Offspring, young, progeny.
  3. Fruit, produce.
  4. (figuratively) Growth, production.

Inflection

Fourth declension.

Case Singular Plural
Nominative fētus fētūs
Genitive fētūs fētuum
Dative fētuī fētibus
Accusative fētum fētūs
Ablative fētū fētibus
Vocative fētus fētūs

Descendants

References
  • fetus in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
  • fetus in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
  • fetus in Gaffiot, Félix (1934) Dictionnaire Illustré Latin-Français, Hachette

Serbo-Croatian

Pronunciation
  • IPA(key): /fěːtus/
  • Hyphenation: fe‧tus

Noun

fétus m (Cyrillic spelling фе́тус)

  1. fetus

Declension
Declension of fetus
singular plural
nominative fetus fetusi
genitive fetusa fetusa
dative fetusu fetusima
accusative fetus fetuse
vocative fetuse fetusi
locative fetusu fetusima
instrumental fetusom fetusima
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