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

refractionist

noun

re·​frac·​tion·​ist -shə-nəst How to pronounce refractionist (audio)
: a person (as an optometrist) skilled in the practical application of the laws of refraction especially to the determination of errors of refraction in the eye

Browse Nearby Words

Cite this Entry

“Refractionist.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/refractionist. Accessed 2 Dec. 2025.

Love words? Need even more definitions?

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