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 in the ocean; swell. [3/2 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. |
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 |
the peak of a large hill, mountain, or wave. [1/4 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 wildly. [1/4 definitions] |