Arcturus
[ ahrk-too r-uh s, -tyoo r- ]
/ ɑrkˈtʊər əs, -ˈtyʊər- /
noun Astronomy.
a first-magnitude star in the constellation Boötes.
Origin of Arcturus
1352–75; < Latin < Greek
Arktoûros, equivalent to
árkt(os) bear +
-oûros keeper; replacing Middle English
arture < Middle French
OTHER WORDS FROM Arcturus
Arc·tu·ri·an, adjectiveExample sentences from the Web for arcturian
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 GoreIt was a gentle dig at his Arcturian homeland, which was smaller than most planets.
Youth |Isaac AsimovFor twenty-four hours on that Arcturian planet, I would give my life.
A Voyage to Arcturus |David Lindsay
British Dictionary definitions for arcturian
Arcturus
/ (ɑːkˈtjʊərəs) /
noun
the brightest star in the constellation Boötes: a red giant. Visual magnitude: –0.4; spectral type: K2III; distance: 37 light years
Derived forms of Arcturus
Arcturian, adjectiveWord Origin for Arcturus
C14: from Latin, from Greek
Arktouros, from
arktos bear +
ouros guard, keeper
Scientific definitions for arcturian
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.