WordNet
n. stands behind the wicket to catch balls
Wikipedia
The wicket-keeper in the sport of cricket is the player on the fielding side who stands behind the wicket or stumps being guarded by the batsman currently on strike. The wicket-keeper is the only member of the fielding side permitted to wear gloves and external leg guards. The wicket-keeper may also wear a helmet with a mesh face guard to help protect from injury.
It is essentially a specialist role although a keeper is occasionally called upon to bowl, in which case another member of the fielding side temporarily keeps wicket. The role of the keeper is governed by Law 40 of the Laws of Cricket.
Usage examples of "wicket-keeper".
The ship's remaining midshipmen were gathered on the larboard gangway, furiously bowling spun-yarn sailcloth-covered balls at Faster Doudle, the Leopard's wicket-keeper, who seized them as accurately as a terrier might seize a rat, and with much the same ferocious concentration, while the whole watch below and all the Marines passed sharply critical remarks.