parallelogram

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“
I cannot waste a night on such trivialities Minos_.--I can't resist giving you just one more tit-bit--the definition of a square at page 123: "A quadrilateral which is a kite, a symmetrical trapezium, and a parallelogram is a square!"

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Definitions (11)

Toggle American Heritage definitions American Heritage Dictionary (1)

  1. noun A four-sided plane figure with opposite sides parallel.

Toggle Century definitions Century Dictionary (8)

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Examples (50)

  • You plot the parallelogram, and it is only the beginning. —  Alpha Centauri Or Die - Leigh Brackett
  • Math homework HELP PLEASE The area of a parallelogram is 128cm^2. —  Answerbag: Latest Questions in Question Categories
  • Coupled with a new parallelogram, the 11s derailleurs are 150 percent stiffer than the 10s derailleurs. —  This Just In
  • Inner products, when available, are incredibly useful in understanding the metric and norm geometry of a space, due to such fundamental facts as the parallelogram law. —  What's new
  • If you use straight-across braces, the whole structure can still tilt like a parallelogram and collapse. —  Ask MetaFilter
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Etymologies (2)

Toggle American Heritage etymologies American Heritage Dictionary (1)

  1. Late Latin parallēlogrammum, from Greek parallēlogrammon, from neuter sing. of parallēlogrammos, bounded by parallel lines : parallēlos, parallel; see parallel + grammē, line; see gerbh- in Indo-European roots.

Toggle Century etymologies Century Dictionary (1)

  1. from Old French parallelogramme, French parallelogramme = Spanish paralelogramo = Portuguese parallelogrammo, paralellogrammo, paralelogrammo = Italian paralellogrammo, paralelogrammo, from Latin parallelogrammum, from Greek παραλληλόγραμμον, a parallelogram, neuter of παραλληλόγραμμος, bounded by parallel lines, from παράλληλος, parallel, + γράμμα, line: see parallel and gram.
 

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/pærəˈlɛləgræm/
by American Heritage

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