alternating calculus al·ter·nat·ing calculus (ôl’tər-nā’tĭng, āl’-)
A urinary calculus having successive layers of different composition. Also called combination calculus.
- Alternating current
an electric current that reverses direction at regular intervals, having a magnitude that varies continuously in sinusoidal manner. Abbreviation: ac. noun a continuous electric current that periodically reverses direction, usually sinusoidally AC Compare direct current alternating current (ôl’tər-nā’tĭng) An electric current that repeatedly changes its direction or strength, usually at a certain frequency or range […]
- Alternating group
the subgroup consisting of all even permutations, of the group of all permutations of a finite set.
- Alternating hemiplegia
alternating hemiplegia alternating hemiplegia n. Hemiplegia caused by a lesion on the opposite side of the brainstem, accompanied by an additional paralysis of a motor cranial nerve on the same side as the lesion. Also called crossed hemiplegia, stauroplegia.
- Alternating light
a beacon showing different colors in succession. Historical Examples The alternating light of the candle flashed upon the body of the old woman, and he remembered all. Snarley-yow Frederick Marryat Pour into well-greased pan, alternating light and dark mixtures to give it the “marbled” appearance. Fifty-Two Sunday Dinners Elizabeth O. Hiller Thus constantly is alternating […]