Arcturus

noun

Arc·​tu·​rus ärk-ˈtu̇r-əs How to pronounce Arcturus (audio)
-ˈtyu̇r-
: a giant fixed star of the first magnitude in Boötes

Word History

Etymology

Latin, from Greek Arktouros, literally, bear watcher

First Known Use

14th century, in the meaning defined above

Time Traveler
The first known use of Arcturus was in the 14th century

Dictionary Entries Near Arcturus

Cite this Entry

“Arcturus.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Arcturus. Accessed 5 Dec. 2022.

Kids Definition

Arcturus

noun

Arc·​tu·​rus ärk-ˈt(y)u̇r-əs How to pronounce Arcturus (audio)
: a very large bright star in Boötes that does not appear to move
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