distress signal
noun
a signal used, or designed to be used, by persons in peril, for the purpose of summoning aid, indicating their position, etc., as a radio code sign, aerial flare, flag hoist, or the like.
Compare distress call(def 1).
an indication, especially a nonverbal one, that assistance, cooperation, or the like, is needed: He correctly interpreted the host's upturned eyes as a distress signal and hastily changed the subject.
Origin of distress signal
First recorded in 1870–75
Words nearby distress signal
distress flag,
distress frequency,
distress gun,
distress merchandise,
distress sale,
distress signal,
distressed,
distressed area,
distressful,
distributary,
distribute
Example sentences from the Web for distress signal
And it would appear to those to whom he reported that he'd arrived too late at the distress-signal.
Operation Terror |William Fitzgerald Jenkins
British Dictionary definitions for distress signal
distress signal
noun
a signal by radio, Very light, etc from a ship or other vessel in need of immediate assistance