Mastomenia is a word that may seem complex to spell due to its multiple syllables and unusual combination of letters. However, the IPA phonetic transcription helps to clarify its pronunciation and spelling. The word is pronounced as /mæstoʊˈmiːniə/ and is spelled accordingly. The initial "m" is followed by "a", "s", and "t" sounds, forming the first syllable. "O" and "e" come next, indicating the second syllable. The final "menia" is pronounced as /ˈmiːniə/, indicating a third syllable. Thus, the spelling of mastomenia is consistent with its pronunciation.
Vicarious menstruation from the mammae.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.