English Dictionary

parallelogram

/ˌpæ.ɹə.ˈlɛl.ə.ˌɡɹæm/

noun

(geometry) A convex quadrilateral in which each pair of opposite edges are parallel and of equal length.

The parallelogram has four sides.

意味（1）

(geometry) A convex quadrilateral in which each pair of opposite edges are parallel and of equal length.

意味（2）

(Gaelic games, dated) either of two rectangular areas (respectively the large parallelogram and the small parallelogram) abutting the goal line in front of the goal. (Since 1986 officially named the large rectangle and small rectangle, though the older names are still occasionally used.)

2 Marking of ground — … A five yard square shall be marked in front of each goal, having the goal posts at adjacent angles. A five yards square shall be marked out in front of each point space, having a goal post and a point post at adjacent angles. There will be thus formed in front of scoring area a parallelogram fifteen yards by five yards.