DIRECTIONAL • DICTIONARY ONE.COM • Definition of Directional

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adjective

directional adj.

Of or pertaining to direction (definition 2).

Serving to indicate direction.

(Radio) Transmitting radio signals in a specific direction, or receiving signals only from a narrow angle of directions, thus serving to indicate the direction from which radio signals are coming. Used of antennas; as, a directional antenna.

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Etymology of 'Directional'

Collaborative International Dictionary of English 0.48

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"Directional" Quotes from Famous Books

... "for landing on earth or water. And radios. I wonder if he has directional for a guide? It would seem sensible, and if a plane went down the rest of them would know about ...

— Astounding Stories of Super-Science, June, 1930 • Various

... communication; (communication) 525, 527, 529, 531, 532; electronic devices (POINFO @.2.2.3.1.3.5.3). [devices for recording and reproducing recorded sound] phonograph, gramophone, megaphone, phonorganon[obs3]. [device to convert sound to electrical signals] microphone,directional microphone, mike, hand mike, lapel microphone. [devices to convert recorded sound to electronic signals] phonograph needle, stylus, diamond stylus, pickup; reading head (electronic devices). hearer, auditor, listener, eavesdropper, listener-in. auditory, audience. ...

— Roget's Thesaurus

... avoided a night pursuit for the sake of fighting on better terms the next morning, but at dawn he found his destroyers scattered far and wide. Judging it unwise to pursue the High Seas Fleet without a screening force, and discovering by directional wireless that it was already south of Horn Reef and in the neighborhood of the mine fields, he gave up the idea of renewing the engagement and turned north. He spent the forenoon in sweeping the scene of the previous day's fighting, collecting ...

— A History of Sea Power • William Oliver Stevens and Allan Westcott

Words linked to "Directional" : omnidirectional, directive, directing, directional microphone, directionality