Bit

   The metal mouthpiece on a bridle, to which the reins are attached.

   Blinkers

   The flaps on a bridle which stop a horse from seeing backwards or sideways (unauthorized in competition).

   Breeches

   Trousers worn specifically for riding.

   Bridle

   A harness that fits around a horse's head, holding the bit.

   Cup

   An attachment to the wing of a jump, which holds the rail in position.

   Fence

   1. in jumping, a vertical obstacle usually no higher than 1.6 metres but involving substantial width, constructed with colourful poles, planks, hedges, fake stone or brick, or flowers.

   2. in the three-day event, a vertical obstacle usually less than 1.2 metres high and constructed with natural materials designed to fit with the terrain.

   Gate

   A vertical fence made with planks, balustrades, gates or other items to present a solid obstacle.

   Hunting stock

   A broad band worn around a rider's neck.

   Obstacle

   In show jumping and the three-day event, an object a horse must clear to complete the course, such as a fence, gate or water jump.

   Oxer

   A single fence consisting of two elements which make a spread jump, such as parallel oxers.

   Parallel oxer

   An obstacle featuring front and back rails of equal height set wide apart to produce a spread, creating a difficult jump.

   Rail

   In showjumping and the three-day event, a pole which makes up a part of some obstacles.

   Saddle

   The seat for the rider on the back of a horse.

   Safety cup

   A special cup used to hold the back rail of a spread fence. This cup releases and drops the rail if the horse hits it.

   Spread

   A show jumping obstacle with an element of width, not just height, and which is generally higher and wider than the other spread jumps.

   Spur

   A pointed device attached to a rider's boot heel and used to encourage a horse.

   Vertical

   An obstacle which is difficult to jump because of its height.

   Vertical fence

   A straight up-and-down fence without width, creating a relatively difficult obstacle.

   Water jump

   An obstacle requiring a horse to jump over a wide expanse of water, usually with a low hedge or fence at the leading edge.

   Whip

   A long, thin, hand-held device used to encourage a horse.

Credit: IOC

For further info., please visit http://www.olympic.org/uk/sports/programme/disciplines_uk.asp?DiscCode=ES.