Dictionary![]() ![]() co•her•erPronunciation: (kō-hēr'ur, -her'-), [key] —n. 1. a person or thing that coheres. 2. Radio.a device usually used in detecting radio waves, as a tube filled with a conducting substance in granular form, whose electrical resistance increases when struck by radio waves. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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