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homing device[′hōm·iŋ di‚vīs]
A control device that automatically starts in the correct direction of motion or rotation to achieve a desired change, as in a remote-control tuning motor for a television receiver.
A device incorporated in a guided missile or the like to home it on a target.
A transmitter, receiver, or adapter used for homing aircraft or used by aircraft for homing purposes.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.