verb (used with object), sig·naled, sig·nal·ing or (especially British) sig·nalled, sig·nal·ling.
verb (used without object), sig·naled, sig·nal·ing or (especially British) sig·nalled, sig·nal·ling.
- signac, paul,
- signal board,
- signal box,
- signal corps,
- signal generator,
- signal node
Origin of signal
Examples from the Web for signalled
The poll also signalled that Americans were comfortable with targeted military action again Iran in the worst-case scenario.
President Obama signalled his move to a middle strategy in his Tuesday meeting with Congressional leaders.
On the night of April 30th a strong gale blew nearly all night, and the Pasha signalled to the Khedive to drop two anchors.
She signalled nervously to a cabman, and gave him the name of the hotel.The Quaint Companions|Leonard Merrick
The Master, after we had signalled for a boat, asked me if I knew the captain.The Works of Robert Louis Stevenson - Swanston Edition, Vol. XII (of 25)|Robert Louis Stevenson
It began to disappear behind the dark horizon within less than half an hour after the time that M'Nicholl had signalled it.All Around the Moon|Jules Verne
The engine room was signalled for full steam, and the "Yankee" sped away in chase.A Gunner Aboard the "Yankee"|Russell Doubleday
- a variable parameter, such as a current or electromagnetic wave, by which information is conveyed through an electronic circuit, communications system, etc
- the information so conveyed
- (as modifier)signal strength; a signal generator
verb -nals, -nalling or -nalled or US -nals, -naling or -naled
Word Origin for signal
late 14c., "visible sign, indication," from Old French signal, seignal "seal, imprint, sign, mark," from Medieval Latin signale "a signal," from Late Latin signalis (adj.) "used as a signal, pertaining to a sign," from Latin signum "signal, sign" (see sign (n.)). Restricted sense "agreed-upon sign (to commence or desist, etc.) is from 1590s. Meaning "modulation of an electric current" is from 1855.
"remarkable, striking, notable" ("serving as a sign"), 1640s, from French signalé, past participle of signaler "to distinguish, signal" (see signal (n.)).
1805, "to make signals to," from signal (n.). Related: Signaled; signaling. Earlier verb was signalize (1650s).