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Pronunciation: arm


  1. The segment of the upper limb between the shoulder and the elbow.
  2. An anatomic extension resembling an arm.
  3. A specifically shaped and positioned extension of a removable partial denture framework.
  4. One set of cases or participants in an epidemiologic study, especially a randomized controlled trial, in which comparisons or contrasts are being made between sets.
  5. Colloquially, the entire upper limb.

Synonym(s): brachio-, brachium1

[L. armus, forequarter of an animal; G. harmos, a shoulder joint]

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.