arcus ūs (gen. ī, once, C.), m ARC-, a bow: intentus in me: adductus, V.: arcum tendere, H.: tela Direxit arcu, H.: pluvius, the rainbow, H.: arcus sereno caelo intentus, L.: nubibus arcus iacit colores, V.

—Poet.: niger aquarum, O.: inmensos saltu sinuatur in arcūs, O.: sinus curvos falcatus in arcūs, bays, O.: Efficiens humilem lapidum compagibus arcum, an arch, O.: via quinque per arcūs, circles of the earth, O.: ad arcum sellae, Ta.