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alpha wave the type of brain wave that is a sign of relaxation, having frequencies from eight to thirteen hertz; alpha rhythm.
AM a system of varying a radio signal's amplitude so as to impose the signal on a carrier wave; amplitude modulation. [1/2 definitions]
beachcomber a long or large wave rolling onto a beach. [1/2 definitions]
billow a large wave or surge in the ocean; swell. [3/4 definitions]
birefringence the splitting of a light wave into two perpendicular waves that have different speeds, as in some crystals.
bodysurf to ride on a wave using the body as a surfboard.
bore3 tidal water that rises abruptly to form a wave as it moves inland.
brandish to wave or shake (something such as a weapon) in a threatening or agitated manner. [1/3 definitions]
breaker1 a heavy ocean wave that breaks into foam on the shore or at sea. [1/4 definitions]
carrier the electromagnetic wave that is modulated to transmit a signal; carrier wave. [1/6 definitions]
CB abbreviation of "citizens band," a series of short wave frequencies set aside by the federal government for private use.
citizens band a series of short wave frequencies set aside by the federal government for private use; CB.
comb anything resembling this crest, such as the crest of a wave. [2/9 definitions]
comber a long, cresting wave; breaker. [1/2 definitions]
crest a peak or prominence, as of a mountain or wave. [1/7 definitions]
curling iron a metal implement in the form of a rod that is heated, around which hair is wrapped in order to curl or wave it.
delta wave a low-frequency electric brain wave present during deep sleep in normal adults; delta rhythm.
echo a reflected electromagnetic wave, as in radar. [1/8 definitions]
echo sounding a method of determining the depth of a body of water by measuring the time the echo of an emitted sound wave takes to return from the bottom.
electromagnetic wave a wave that contains a magnetic and electric component and that is created by an accelerating electric charge, such as a radio wave, x-ray, or light.
flail to move or wave randomly or wildly. [1/6 definitions]