Arctus

== Latin == === Alternative forms === Arctos arctus === Etymology === Borrowed from Ancient Greek Ἄρκτος (Árktos), ἄρκτος (árktos). Doublet of ursus. === Noun === Arctus f (genitive Arctī); second declension the Ursa Major constellation Synonym: Septentriō maior, Helicē (qualified as minor) the Ursa Minor constellation Synonym: Cynosūra (in the plural) both the Ursa Major and the Ursa Minor Synonym: Septentriōnēs north Synonym: boreās, aquilō, septentriō, septentriōnēs === Further reading === Arctus at Index to Organism Names