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From Latin cōncipiō (to take hold of, to receive), from Latin capiō (to capture)


conceptus (plural conceptuses or concepti or conceptūs)

  1. The fetus or embryo, including all the surrounding tissues protecting and nourishing it during pregnancy.


American Heritage Dictionary of the English Language: Fourth Edition.


Etymology 1[edit]

Perfect passive participle of concipiō (I receive, catch).



conceptus m (feminine concepta, neuter conceptum); first/second declension

  1. received, caught
  2. derived from
  3. contained, held
  4. adopted
  5. conceived

First/second declension.

Number Singular Plural
Case / Gender Masculine Feminine Neuter Masculine Feminine Neuter
nominative conceptus concepta conceptum conceptī conceptae concepta
genitive conceptī conceptae conceptī conceptōrum conceptārum conceptōrum
dative conceptō conceptō conceptīs
accusative conceptum conceptam conceptum conceptōs conceptās concepta
ablative conceptō conceptā conceptō conceptīs
vocative concepte concepta conceptum conceptī conceptae concepta

Etymology 2[edit]

From concipiō (I receive, catch) +‎ -tus (forms nouns from verbs, usually signifying the result of an action).


conceptus m (genitive conceptūs); fourth declension

  1. conception
  2. embryo, fetus
  3. cistern


Fourth declension.

Case Singular Plural
nominative conceptus conceptūs
genitive conceptūs conceptuum
dative conceptuī conceptibus
accusative conceptum conceptūs
ablative conceptū conceptibus
vocative conceptus conceptūs

Related terms[edit]



  • conceptus in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
  • conceptus in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
  • Carl Meissner; Henry William Auden (1894) Latin Phrase-Book[1], London: Macmillan and Co.
    • to blot out a reproach: maculam (conceptam) delere, eluere
  • conceptus in Ramminger, Johann (accessed 16 July 2016) Neulateinische Wortliste: Ein Wörterbuch des Lateinischen von Petrarca bis 1700[2], pre-publication website, 2005-2016