galactorrhea

noun

ga·lac·tor·rhea gə-ˌlak-tə-ˈrē-ə

: a spontaneous flow of milk from the nipple

Word History

Etymology

borrowed from New Latin, from galacto- galacto- + -rrhoea -rrhea

First Known Use

circa 1860, in the meaning defined above

Time Traveler

The first known use of galactorrhea was circa 1860

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Cite this Entry

Style

“Galactorrhea.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/galactorrhea. Accessed 25 Jul. 2025.

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Medical Definition

galactorrhea

noun

ga·lac·tor·rhea

variants or chiefly British galactorrhoea

gə-ˌlak-tə-ˈrē-ə

: a spontaneous flow of milk from the nipple

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