refractor

noun

re·​frac·​tor ri-ˈfrak-tər How to pronounce refractor (audio)
: a telescope whose principal focusing element is a lens

Examples of refractor in a Sentence

Recent Examples on the Web
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These prominent features are best seen using a refractor telescope with a long focal length (the distance from the objective lens to the focal point) that accommodates eyepieces offering 200x magnification. Jamie Carter, Space.com, 25 Dec. 2024 Another in 2007 used an off-the-shelf digital detector on a small refractor telescope to deliver remarkably decent photometric measurements, even for third-magnitude stars (which are somewhat fainter than those making up the Big Dipper). Phil Plait, Scientific American, 26 July 2024 There’s even a broadcast feed for those who can’t climb the narrow steps to the observatory’s 8-inch refractor telescope. Laura Randall, Los Angeles Times, 16 May 2024 Last year, an autographed Bowman chrome refractor card of Ohtani in his 2018 rookie year fetched $184,000. Samantha Masunaga, Los Angeles Times, 27 Mar. 2024 See all Example Sentences for refractor 

Word History

First Known Use

1769, in the meaning defined above

Time Traveler
The first known use of refractor was in 1769

Dictionary Entries Near refractor

Cite this Entry

“Refractor.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/refractor. Accessed 22 Jan. 2025.

Kids Definition

refractor

noun
re·​frac·​tor ri-ˈfrak-tər How to pronounce refractor (audio)
: a telescope in which the principal light-gathering element is a lens
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