noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   An enlargement of the breast(s) due to excessive deposition of fat or skin, as opposed to “true gynecomastia” which results from the development of glandular breast tissue. US, uncountable

Etymology

From pseudo- + gynecomastia.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.