‖ mastodyniaMed.|mæstəʊˈdaɪnɪə| Also -dyny. [mod.L., f.Gr. µαστ-ός breast + ὀδύνη pain.] Neuralgia of the female breast. 1802Med.Jrnl. VIII. 493 Cases admitted..Mastodynia 3.1879Khory Princ.Med. 16 Mastodynia is often due to uterine..irritation.1880Webster Suppl., Mastodyny.