Definition: The pigmented area surrounding the nipple. The size, shape, and color will vary from woman to woman and it will darken during pregnancy and lactation.
Pronunciation: ah-ree-oh-la
Alternate Spellings: aureola
From Melissa Kotlen Nagin, former About.com Guide
Updated April 21, 2009
About.com Health's Disease and Condition content is reviewed by the Medical Review Board