1. to guide or direct (a horse) with the pressure of a rein on the opposite side of the neck from the direction in which the rider wishes to travel.
2. (of a horse) to respond to such pressure by going in the desired direction.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
References in periodicals archive ?
The summer she was 5, she took a half-dozen classes in western riding, the style used for long rides with a large saddle and neck-rein signals from the rider.