Arc·tu·rus (ärk-t
r
əs, -ty
r
-)
n.The fourth brightest star in the sky and the brightest star in the constellation Boötes, approximately 36 light-years from Earth.
[TahlilGaran] American Dictionary ▲
arcturus [Middle English, from Latin
Arct
rus, from Greek
Arktouros :
arktos,
bear; see
tko- in Indo-European Roots +
ouros,
guard (from its position behind Ursa Major); see
wer-3 in Indo-European Roots.]
[TahlilGaran] American Dictionary ▲