Circulus Arcticus

== Latin == === Etymology === From circulus (“circle, ring, orbit, etc.”) + arcticus (“northern, later Arctic”). === Pronunciation === (Classical Latin) IPA(key): [ˈkɪr.kʊ.ɫʊs ˈark.tɪ.kʊs] (modern Italianate Ecclesiastical) IPA(key): [ˈt͡ʃir.ku.lus ˈark.ti.kus] === Proper noun === Circulus Arcticus m sg (genitive Circulī Arcticī); second declension (geography) The Arctic Circle ==== Declension ==== Second-declension noun with a second-declension adjective, singular only. === References === Guilielmo Blaeuw (1622), Europa recens descripta [A recent description of Europe] (in Latin).