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signals - 3 dictionary results

sig⋅nal

[sig-nl] noun, adjective, verb, -naled, -nal⋅ing or (especially British) -nalled, -nal⋅ling.
–noun
1. anything that serves to indicate, warn, direct, command, or the like, as a light, a gesture, an act, etc.: a traffic signal; a signal to leave.
2. anything agreed upon or understood as the occasion for concerted action.
3. an act, event, or the like that causes or incites some action: The unjust execution was the signal for revolt.
4. a token; indication.
5. Electronics. an electrical quantity or effect, as current, voltage, or electromagnetic waves, that can be varied in such a way as to convey information.
6. Cards. a play that reveals to one's partner a wish that he or she continue or discontinue the suit led.
–adjective
7. serving as a signal; used in signaling: a signal flag.
8. unusual; notable; outstanding: a signal exploit.
–verb (used with object)
9. to make a signal to.
10. to communicate or make known by a signal.
–verb (used without object)
11. to make communication by a signal or signals.

Origin:
1350–1400; ME (n.) < ML signāle, LL, n. use of neut. of signālis of a sign. See sign, -al 2 , -al 1


sig⋅nal⋅er; especially British sig⋅nal⋅ler, noun


1, 4. sign. 8. unique, exceptional, remarkable, striking.
sig·nal   (sĭg'nəl)   
n.  
    1. An indicator, such as a gesture or colored light, that serves as a means of communication. See Synonyms at gesture.
    2. A message communicated by such means.
  1. Something that incites action: The peace treaty was the signal for celebration.
  2. Electronics An impulse or a fluctuating electric quantity, such as voltage, current, or electric field strength, whose variations represent coded information.
  3. The sound, image, or message transmitted or received in telegraphy, telephony, radio, television, or radar.
adj.  Notably out of the ordinary: a signal feat; a signal event.
v.   sig·naled or sig·nalled, sig·nal·ing or sig·nal·ling, sig·nals

v.   tr.
  1. To make a signal to: I signaled the driver to proceed.
  2. To relate or make known by signals: They have signaled their willingness to negotiate.
v.   intr.
To make a signal or signals.

[Middle English, from Old French, from Medieval Latin signāle, from neuter of Late Latin signālis, of a sign, from Latin signum, sign; see sign.]
sig'nal·er, sig'nal·ler n.
signal   (sĭg'nəl)  Pronunciation Key 
A fluctuating quantity or impulse whose variations represent information. The amplitude or frequency of voltage, current, electric field strength, light, and sound can be varied as signals representing information.
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