(ice hockey) The ice between a team's own blue line and its end board.

(cricket) A field set with fielders in positions designed to prevent runs rather than take wickets.

(baseball) An official scoring judgement in which a runner is not credited with a stolen base because the team playing the field did not try to stop the steal. This typically occurs late in a game when the fielding team is winning by at least two runs.

(American football) Any of a few defensive positions in the middle of the defensive line.

plural of defensive design

(computing) The practice of planning for contingencies in the design stage of a project so as to make the misuse of the software impossible, or to minimise the negative consequences.

(programming) A form of defensive design aiming to ensure the continuing functioning of a piece of software in spite of unforeseeable usage of it.

(Canadian football) A defensive back whose primary jobs are to cover the slotback on passing plays and prevent running plays from going to the outside.

(American football, Canadian football) Collective term for the defensive players who are in position farthest from the ball at the start of a play and whose principal responsibility is to defend against passes. Includes cornerbacks and safeties in both codes, and defensive halfbacks in the Canadian game.

plural of defensive wound