quadrantic hemianopsia n.
Loss of vision in a quarter section of the visual field of one or both eyes. Also called quadrantanopsia.
noun, Nautical. 1. either of two soft-iron spheres attached to each side of a binnacle, intended to correct the compass deviation (quadrantal deviation) resulting from magnetism from ferrous metal in a ship.
/ˈkwɒˌdræntɪd/ noun 1. any member of a meteor shower occurring annually around Jan 3 and appearing to radiate from a point in the constellation Boötes
[kwo-dran-tidz] /kwɒˈdræn tɪdz/ noun, (used with a plural verb) Astronomy. 1. a collection of meteors comprising a meteor shower (Quadran·tid me·teor show·er) visible around January 31 and having its apparent origin in the constellation Boötes.
[kwod-ruh-fon-ik] /ˌkwɒd rəˈfɒn ɪk/ adjective 1. of, noting, or pertaining to the recording and reproduction of sound over four separate transmission or direct reproduction channels instead of the customary two of the stereo system: a quadraphonic recording. adj. 1969, irregular formation from quadri- “four” + phonic, from Greek phone “sound, voice” (see fame (n.)). The […]