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signal
has definitions from the fields of physics,electricity
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[ noun ] any communication that encodes a message
Examples "signals from the boat suddenly stopped" Used in print (James A. Ibers et al., "Proton magnetic resonance...)The spectrometer was adjusted to minimize the amount of dispersion mode mixed_in with the absorption signal . This measurement was obtained by W._Blumberg of the University_of_California,Berkeley , by observing the breadth of the free induction decay signal . (Jim Berry Pearson, The Maxwell Land Grant....)Occasionally they heard gun-shot signals and a number of horsemen were sighted on the hills , disappearing at the posse 's approach . (Tristram Coffin, Not to the Swift....)We knew the enemy was subdued , because a flare was fired as the signal . (Robert L. Duncan, The Voice of Strangers....)At two thirty he sent Fujimoto to the top of the wall at the northeast corner of the mission to keep_an_eye_on the ridge road and give a signal when he first glimpsed the approach of Kayabashi 's party . Related terms communication symbol recording indication phone_number radio_beam input_signal indicator output_signal storm_signal dog-ear curfew whistle visual_signal time_signal retreat drumbeat telegraphic_signal animal_communication high_sign electronic_signal distress_signal alarm all_clear radio_beacon starting_signal ticktack bugle_call bespeak signalize sign bless signalize |
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[ verb ] communicate silently and non-verbally by signals or signs
Examples "He signed his disapproval with a dismissive hand gesture" "The diner signaled the waiters to bring the menu" Used in print (Alex Gordon, The Cipher....)He would have to climb back down to the street and signal a cop . (Breni James, Nights of the Kill....)Language was no problem anyway ; Mr._Phillips had only to signal from his doorway to summon aid from the ubiquitous bilingual children who played on the sidewalks of Mission_Street . Related terms communicate flag heliograph wigwag whistle semaphore signaler signer sign_language |
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[ verb ] be a signal for or a symptom of
Examples "These symptoms indicate a serious illness" "Her behavior points to a severe neurosis" "The economic indicators signal that the euro is undervalued" Used in print (San Francisco Chronicle,...)At 12000 feet , Fiedler signaled `` release '' , and started the roaring pulse-jet engine - then streaked away from beneath the Heinkel . (National Review...)In defeating `` Louis_Capet '' , John_Tower 's victory in Texas signals , once_again , the end of the divine right of Liberalism . (Rosemary Balckmon, "How Much Do You Tell When...)Stammering or repetition of I , you , he , she , et cetera may signal ambiguity or uncertainty . Related terms |
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[ noun ] any incitement to action
Examples "he awaited the signal to start" "the victory was a signal for wild celebration" Related terms |
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[ noun ] (physics,electricity) an electric quantity (voltage or current or field strength) whose modulation represents coded information about the source from which it comes
Related terms |
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[ adjective ] notably out of the ordinary
Examples "the year saw one signal triumph for the Labour party" Related terms |
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