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cubitus

[kyoo-bi-tuh s]
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noun, plural cu·bi·ti [kyoo-bi-tahy] /ˈkyu bɪˌtaɪ/.
  1. a longitudinal vein in the rear portion of the wing of an insect.
  2. Anatomy.
    1. the forearm.
    2. Now Rare.the ulna.
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Origin of cubitus

1820–30; < New Latin, Latin, variant of cubitum cubit
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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cubitus in Medicine

cubitus

(kyōōbĭ-təs)
n. pl. cubitus
  1. elbow
  2. ulna