tread

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tread

injury to the coronet of the horse's hoof by treading on it by the opposite hoof, or by another horse when they are being worked in a team. If the coronary matrix is injured there may be a subsequent crack or deformity.
References in periodicals archive ?
The Kaibab Suspension Bridge, also called the Black Bridge, will close to foot traffic while trail crews replace wood decking and tread boards.
The work on the Black Bridge replaces decking and tread boards, which over time have become rutted, making the walking surface uneven.
A to give a bit of extra food the nosing can be while you cut the carriages; just keep it in mind when choosing tread boards.