✨📕 The NEWThe NEW Collegiate Dictionary, 12th Edition Over 5,000 words added — Buy Now! Collegiate DictionaryBuy Now!

polygalactia

noun

poly·​ga·​lac·​tia ˌpäl-i-gə-ˈlak-tē-ə, -ˈlak-sh(ē-)ə How to pronounce polygalactia (audio)
: excessive milk secretion

Browse Nearby Words

Cite this Entry

“Polygalactia.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/polygalactia. Accessed 1 Dec. 2025.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!