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ctn

1

abbreviation for

, Trigonometry.


ctn.

2

abbreviation for

, plural ctns.
  1. carton.

ctn

abbreviation for

  1. cotangent
“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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ctmo.CTO