Definify.com
Webster 1913 Edition
Arcturus
Arc-tu′rus
,Noun.
[L.
Arcturus
, Gr. [GREEK] bearward, equiv. to [GREEK]; [GREEK] bear + [GREEK] ward, guard. See Arctic
.] (Anat.)
A fixed star of the first magnitude in the constellation Boötes.
☞ Arcturus has sometimes been incorrectly used as the name of the constellation, or even of Ursa Major.
Canst thou guide
Arcturus
with his sons [Rev. Ver.: “the Bear with her train”]. Job xxxviii. 32.
Webster 1828 Edition
Arcturus
ARCTU'RUS
,Noun.
Definition 2024
Arcturus
Arcturus
English
Proper noun
Arcturus
- (astronomy) A bright yellow-orange star in the constellation Boötes; Alpha (α) Boötis. It is the fourth brightest star in the night sky.
Translations
Alpha Boötis
Latin
Etymology
From Ancient Greek Ἀρκτοῦρος (Arktoûros), from ἄρκτος (árktos, “bear”) + οὖρος (oûros, “guard”).
Proper noun
Arctūrus m (genitive Arctūrī); second declension
- The star Arcturus
- The constellation Boötes
- A personification of the star in the comedic play Rudens by Plautus.
Inflection
Second declension.
| Case | Singular | Plural |
|---|---|---|
| nominative | Arctūrus | Arctūrī |
| genitive | Arctūrī | Arctūrōrum |
| dative | Arctūrō | Arctūrīs |
| accusative | Arctūrum | Arctūrōs |
| ablative | Arctūrō | Arctūrīs |
| vocative | Arctūre | Arctūrī |