Polymastia

//pɒlɪˈmæstɪə// noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    The fact or condition of having more than two mammae or nipples. uncountable

    "Viewed in the light of comparative anatomy, polymastia is interesting, as showing a tendency to re-establish the series of mammae seen in other mammalia; but Darwin has lately repudiated atavism as a cause of this malformation"

Example

More examples

"Viewed in the light of comparative anatomy, polymastia is interesting, as showing a tendency to re-establish the series of mammae seen in other mammalia; but Darwin has lately repudiated atavism as a cause of this malformation"

Etymology

From poly- + -mastia (corresponding to Ancient Greek μαστός (mastós, “breast”)).

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