English Explanatory Dictionary

parallelogram

English dictionary entry

Meanings

noun
  1. A convex quadrilateral in which each pair of opposite edges are parallel and of equal length.
  2. 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.)

Pronunciation

pâ'rə-lĕlʹə-grăm' /ˌpæ.ɹəˈlɛl.əˌɡɹæm/ LL-Q1860 (eng)-Vininn126-parallelogram.wav

Word forms

parallelogram parallelograms parallelogramme

Etymology

From Latin parallelogrammum, from Ancient Greek παράλληλος (parállēlos, “parallel”) + γραμμή (grammḗ, “line”).

Derived words

antiparallelogram contraparallelogram gyroparallelogram parallelogramic parallelogram identity parallelogram law parallelogrammatic parallelogrammic parallelogram of forces parallelogram rule parallelotope Varignon parallelogram
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