wavelength
noun
wave·length
ˈwāv-ˌleŋ(k)th 
1
: the distance in the line of advance of a wave from any one point to the next point of corresponding phase
2
: a particular course or line of thought especially as related to mutual understanding
two people on different wavelengths
Examples of wavelength in a Sentence
Light and sound have different wavelengths.
Recent Examples on the Web
With space telescope spectrography, researchers can break down the remaining wavelengths into specific color bands, each corresponding with the elements in its atmosphere.
—
Andrew Paul, Popular Science, 2 Apr. 2026
Designed to deliver full-body red-light therapy, the fixture has a detachable light ring that emits red and near-infrared wavelengths of 650 and 850nm.
—Jenny Berg, Vogue, 31 Mar. 2026
High-frequency bands above tens of gigahertz (GHz) have very short wavelengths, so even slight misalignment of a measurement target can significantly affect results.
—Jijo Malayil, Interesting Engineering, 31 Mar. 2026
The trailer highlights Riley’s signature blend of absurdism and agitprop aesthetic, but it’s anchored by a band of performers who seem not only fully locked into the movie’s wavelength but determined to hit their mark.
—Alison Foreman, IndieWire, 30 Mar. 2026
See All Example Sentences for wavelength
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Andrew Paul, Popular Science, 2 Apr. 2026
Designed to deliver full-body red-light therapy, the fixture has a detachable light ring that emits red and near-infrared wavelengths of 650 and 850nm.
—Jenny Berg, Vogue, 31 Mar. 2026
High-frequency bands above tens of gigahertz (GHz) have very short wavelengths, so even slight misalignment of a measurement target can significantly affect results.
—Jijo Malayil, Interesting Engineering, 31 Mar. 2026
The trailer highlights Riley’s signature blend of absurdism and agitprop aesthetic, but it’s anchored by a band of performers who seem not only fully locked into the movie’s wavelength but determined to hit their mark.
—Alison Foreman, IndieWire, 30 Mar. 2026
See All Example Sentences for wavelength
Cite this Entry
“Wavelength.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/wavelength. Accessed 5 Apr. 2026.
Copy CitationKids Definition
wavelength
noun
wave·length
ˈwāv-ˌleŋ(k)th
1
: the distance (as from crest to crest) in the line of advance of a wave from any one point to the next corresponding point
2
: a certain line of thought or behavior that reveals a common understanding
coworkers who are on the same wavelength
Medical Definition
wavelength
noun
wave·length
-ˌleŋ(k)th
: the distance in the line of advance of a wave from any one point to the next point of corresponding phase
—symbol λ
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