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Definition/Scope: (1) As applied to electronics, any transmitted electrical impulse. (2) Operationally, a type of message, the text of which consists of one or more letters, words, characters, signal flags, visual displays, or special sounds with prearranged meaning, and which is conveyed or transmitted by visual, acoustical, or electrical means. (3) A pyrotechnic item designed to produce a sign by means of illumination, smoke, sound or combination of these effects to provide identification, location, warning,



Narrower Terms:

acoustic signals
all clear
analog signals
beat signals
call signs
clusters (fireworks)
distress signals
false signals
fog signals
radar signals
radio signal
signal flags
signal lights
smoke signals
telegraph signals
telephone signals
time signals
video signals
visual signals

Related Terms:

Morse Code

CALL Homepage >> Thesaurus Last Updated: Sept 17, 2008