: the mutual effect on meeting of two wave trains (as of light or sound) that constitutes alternating areas of increased and decreased amplitude (as light and dark lines or louder and softer sound)
: partial or complete inhibition or sometimes facilitation of other genetic crossovers in the vicinity of a chromosomal locus where a preceding crossover has occurred
: the disturbing effect of new learning on the performance of previously learned behavior with which it is inconsistent—compare negative transfer
: prevention of typical growth and development of a virus in a suitable host by the presence of another virus in the same host individual—see interference phenomenon
In physics, the net effect of combining two or more wave trains moving on intersecting or coincident paths. Constructive interference occurs if two components have the same frequency and phase; the wave amplitudes are reinforced. Destructive interference occurs when the two waves are out of phase by one-half period (seeperiodic motion); if the waves are of equal amplitude, they cancel each other. Two waves moving in the same direction but having slightly different frequencies interfere constructively at regular intervals, resulting in a pulsating frequency called a beat. Two waves traveling in opposite directions but having equal frequencies interfere constructively in some places and destructively in others, resulting in a standing wave.