Try Our Apps


What is the origin of "February"?

extraordinary wave

noun, Radio.
(of the two waves into which a radio wave is divided in the ionosphere under the influence of the earth's magnetic field) the wave with characteristics different from those that the undivided wave would have exhibited in the absence of the magnetic field.
Also called X-wave.
Compare ordinary wave.
Origin of extraordinary wave
1880-85 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2016.
Cite This Source

Word of the Day

Difficulty index for extraordinary wave

Few English speakers likely know this word

Word Value for extraordinary

Scrabble Words With Friends

Nearby words for extraordinary-wave