Definition of: oscillation

(os′ə·lā′shən) noun
1. The act or state of oscillating.
2. Physics a A single swing of an oscillating body between two extremes. b A continual fluctuation between extreme values of quantity or force, as in a high-frequency electric current, the maximum value of which constantly diminishes with a speed dependent upon the damping effect present.
—os′cil·la·to′ry (-lə·tôr′ē, -tō′rē) adjective