Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun The distance between one peak of a wave to the next corresponding peak, or between any two adjacent corresponding points, defined as the speed of a wave divided by its frequency.
  • idiom (on the same wavelength) In complete accord; in harmony.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun The length of a single cycle of a wave, as measured by the distance between one peak or trough of a wave and the next; it is often designated in physics as λ, and corresponds to the velocity of the wave divided by its frequency.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun the distance (measured in the direction of propagation) between two points in the same phase in consecutive cycles of a wave
  • noun a shared orientation leading to mutual understanding

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

wave +‎ length

Examples

Comments

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  • If there is chemistry between two people, they may be said to be on the same wavelength. See Free Association.

    February 8, 2008