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antiparallel

[ an-tee-par-uh-lel, an-tahy- ]

adjective

, Mathematics, Physics.
  1. (of two vectors) pointing in opposite directions.


antiparallel

/ ˌæntɪˈpærəˌlɛl /

adjective

  1. physics parallel but pointing in the opposite direction
  2. maths (of vectors) parallel but having opposite directions
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


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Word History and Origins

Origin of antiparallel1

First recorded in 1650–60; anti- + parallel

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