parallelograms

Noun

parallelogram (plural parallelograms)

1. A convex quadrilateral in which each pair of opposite edges are parallel and of equal length.
   • Meronyms: angle, side; see also Thesaurus:polygon
2. (dated, Gaelic games) 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...1907 GAA, Official Guide "Football Rules"; quoted in Joseph Lennon, The playing rules of football and hurling, 1884-1995 (Northern Recreation Consultants 1997) p.66 →ISBN