a voltage that reverses direction in regular cycles.
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
to interchange repeatedly and regularly with one another in time or place; rotate (usually followed by with): Day alternates with night. to change back and forth between conditions, states, actions, etc.: He alternates between hope and despair. to take turns: My sister and I alternated in doing the dishes. Electricity. to reverse direction or sign […]
- Alternation of heart
alternation of heart alternation of heart n. See mechanical alternation.
- Alternative comedy
noun a type of comedy routine that mainly seeks laughs through complaints and rants and discussion of formerly taboo topics Examples Alternative comedy has become so common that many say it is ‘dead’ as a genre. Word Origin purportedly ‘born’ in the New York Soho district’s Comedy Store