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

setfast

noun

set·​fast ˈset-ˌfast How to pronounce setfast (audio)

Browse Nearby Words

Cite this Entry

“Setfast.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/setfast. Accessed 29 Nov. 2025.

Love words? Need even more definitions?

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