Arcturus
a first-magnitude star in the constellation Boötes.
Origin of Arcturus
1Other words from Arcturus
- Arc·tu·ri·an, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use Arcturus in a sentence
It was forty feet long, eight wide, and eight high; the tank containing the Arcturian back rays was in front, the car behind.
A Voyage to Arcturus | David LindsayThey are of a spectral type approximately solar; no Orion, Sirian or Arcturian stars having been found among them.
Astronomical Curiosities | J. Ellard GoreFor twenty-four hours on that Arcturian planet, I would give my life.
A Voyage to Arcturus | David LindsayIt was a gentle dig at his Arcturian homeland, which was smaller than most planets.
Youth | Isaac Asimov
British Dictionary definitions for Arcturus
/ (ɑːkˈtjʊərəs) /
the brightest star in the constellation Boötes: a red giant. Visual magnitude: –0.4; spectral type: K2III; distance: 37 light years
Origin of Arcturus
1Derived forms of Arcturus
- Arcturian, adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Scientific definitions for Arcturus
[ ärk-tur′əs ]
A giant star in the constellation Boötes. It is the brightest star in the Northern Hemisphere and the fourth brightest star in the sky, with an apparent magnitude of 0.00. Scientific name: Alpha Boötes.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Browse