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From the Latin phrase "(musculus) rectus", or "a straight (muscle)".


rectus ‎(plural recti)

  1. (anatomy) Any of several straight muscles in various parts of the body, as of the abdomen, thigh, eye etc.

Derived terms[edit]




Perfect passive participle of regō ‎(rule). Corresponds to Proto-Indo-European *h₃reǵtós ‎(having moved in a straight line), from Proto-Indo-European *h₃reǵ- ‎(to straighten, direct).



rēctus m ‎(feminine rēcta, neuter rēctum); first/second declension

  1. ruled, having been ruled, governed, having been governed
  2. guided, having been guided, steered, having been steered
  3. straight
  4. right
  5. proper, honest


First/second declension.

Number Singular Plural
Case / Gender Masculine Feminine Neuter Masculine Feminine Neuter
nominative rēctus rēcta rēctum rēctī rēctae rēcta
genitive rēctī rēctae rēctī rēctōrum rēctārum rēctōrum
dative rēctō rēctō rēctīs
accusative rēctum rēctam rēctum rēctōs rēctās rēcta
ablative rēctō rēctā rēctō rēctīs
vocative rēcte rēcta rēctum rēctī rēctae rēcta



  • rectus in Charlton T. Lewis & Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
  • rectus in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
  • RECTUS in Charles du Fresne du Cange’s Glossarium Mediæ et Infimæ Latinitatis (augmented edition, 1883–1887)
  • rectus” in Félix Gaffiot (1934), Dictionnaire Illustré Latin-Français, Paris: Hachette.
  • Meissner, Carl; Auden, Henry William (1894) Latin Phrase-Book[1], London: Macmillan and Co.
    • (ambiguous) in a straight line: recta (regione, via); in directum
    • (ambiguous) you were right in...; you did right to..: recte, bene fecisti quod...
    • (ambiguous) a good conscience: conscientia recta, recte facti (factorum), virtutis, bene actae vitae, rectae voluntatis
    • (ambiguous) to congratulate oneself on one's clear conscience: conscientia recte factorum erigi
    • (ambiguous) quite rightly: et recte (iure, merito)
    • (ambiguous) quite rightly: et recte (iure) quidem
    • (ambiguous) quite rightly: recte, iure id quidem