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 light and gloom in a way that nearly drives me mad.
The Shirley Letters from California Mines in 1851-52 Louise Amelia Knapp Smith Clappe
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- Alternating pulse
alternating pulse alternating pulse n. A pulse pattern that occurs at regular intervals but alternates between weak and strong beats; usually indicates myocardial disease. Also called pulsus alternans.
- Alternating series
a series, usually infinite, in which successive terms have opposite signs, as 1 − ½ + ¼ − ⅛ +. …. Historical Examples They use a piece of quartz or glass, making horizontal and vertical incisions in alternating series. Oriental Women Edward Bagby Pollard The area is thus an alternating series of three wooded slopes […]
- Alternating tremor
alternating tremor alternating tremor n. Hyperkinesia characterized by regular, symmetrical, to-and-fro movements produced by patterned, alternating contraction of muscles and their antagonists.
- Alternating voltage
a voltage that reverses direction in regular cycles. Historical Examples I want to wait until you have seen what the crystal does when an alternating voltage is applied to it. Letters of a Radio-Engineer to His Son John Mills
- Alternating-gradient focusing
noun (physics) a method of focusing beams of charged particles in high-energy accelerators, in which a series of magnetic or electrostatic lenses alternately converge and diverge the beam, producing a net focusing effect and thus preventing the beam from spreading