Skip to Content
Medical Term:


Pronunciation: brest


  1. The pectoral surface of the thorax.
  2. The female organ of milk secretion; one of two commonly hemispheric projections anterior to the pectoral muscles including the mammary glands within a highly variable amount of fat in the subcutaneous tissue and bearing the nipple superficially on either side of the chest of the mature female; it is rudimentary in the male.

Synonym(s): mammaTA, teat2

[A.S. breōst]

© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.