a. Of or pertaining to an arc. [ 1913 Webster ]
Arcual measure of an angle (Math.),
adv. In the form of a bow. [ 1913 Webster ]
n. [ L. arcuatio. ]
n. [ See Arbalist. ] A crossbow. Fosbroke. [ 1913 Webster ]
n. [ L. arcuballistarius. Cf. Arbalister. ] A crossbowman; one who used the arcubalist. Camden. [ 1913 Webster ]
n. See Arquebus. [ Obs. ] [ 1913 Webster ]