fetus

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See also: foetus and fétus

English[edit]

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A fetus at eight weeks from conception

Alternative forms[edit]

Etymology[edit]

Borrowed from Latin fētus (offspring). Doublet of fawn.

Pronunciation[edit]

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

Noun[edit]

fetus (plural fetuses or (hypercorrect) feti or (misconstructed) fetii)

  1. (Australia, 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. (Australia, 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[edit]

  • The form fetus is the primary spelling in the United States, Canada, Australia, and in the scientific community, whereas foetus is still commonly used in the United Kingdom and some other Commonwealth nations.
  • The nominative/accusative plural of fētus in Latin is fētūs with lengthened second vowel. The hypercorrect plurals feti and fetii are thus comparable to the hypercorrect plural octopi of octopus (the Ancient Greek plural of octopus is octopodes).

Derived terms[edit]

Related terms[edit]

Translations[edit]

See also[edit]

References[edit]

Anagrams[edit]


Catalan[edit]

Etymology[edit]

From Latin fētus, attested from circa 1900.[1]

Noun[edit]

fetus m (plural fetus)

  1. fetus

Related terms[edit]

References[edit]

  1. ^ fetus”, in Gran Diccionari de la Llengua Catalana, Grup Enciclopèdia Catalana, 2022

Further reading[edit]


Latin[edit]

Alternative forms[edit]

Etymology[edit]

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[edit]

Adjective[edit]

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

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

Declension[edit]

First/second-declension adjective.

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 fētō fētīs
Accusative fētum fētam fētum fētōs fētās fēta
Ablative fētō fētā fētō fētīs
Vocative fēte fēta fētum fētī fētae fēta

Descendants[edit]

  • Balkan Romance:
    • Aromanian: fet(u), featã
    • Istro-Romanian: fetĕ
    • Romanian: făt, fată
  • Italo-Romance:
  • Padanian:
  • Northern Gallo-Romance:
  • Southern Gallo-Romance:
  • Insular Romance:

References[edit]

Noun[edit]

fētus m (genitive fētūs); fourth declension

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

Declension[edit]

Fourth-declension noun.

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

Related terms[edit]

Descendants[edit]

References[edit]


Romanian[edit]

Etymology[edit]

From Latin foetus

Noun[edit]

fetus m (plural fetuși)

  1. fetus

Declension[edit]


Serbo-Croatian[edit]

Pronunciation[edit]

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

Noun[edit]

fétus m (Cyrillic spelling фе́тус)

  1. fetus

Declension[edit]