On the same wave length

[weyv-lengkth, -length, -lenth] /ˈweɪvˌlɛŋkθ, -ˌlɛŋθ, -ˌlɛnθ/

noun
1.
Physics. the distance, measured in the direction of propagation of a , between two successive points in the that are characterized by the same phase of oscillation.
Idioms
2.
on the same wavelength, in sympathy or rapport:
We seemed to be on the same wavelength from the moment we met.
/ˈweɪvˌlɛŋθ/
noun
1.
the distance, measured in the direction of propagation, between two points of the same phase in consecutive cycles of a wave λ
2.
the wavelength of the carrier wave used by a particular broadcasting station
3.
(informal) on someone’s wavelength, on the same wavelength, having similar views, feelings, or thoughts (as someone else)
n.

1850, “distance between peaks of a wave,” from wave (n.) + length. Originally of spectra; radio sense is attested by 1925. Figurative sense of “mental harmony” is recorded from 1927, on analogy of radio waves.

wavelength wave·length (wāv’lěngkth’, -lěngth’)
n.

Symbol λ The distance between one peak or crest of a wave of light, heat, or other energy and the next corresponding peak or crest.
wavelength
(wāv’lěngkth’)
The distance between one peak or crest of a wave and the next peak or crest. It is equal to the speed of the wave divided by its frequency, and to the speed of a wave times its period.

The distance between crests (or troughs) of a wave.

Related Terms

turn on the waterworks