Webster's English Dictionary

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notation

no.ta.tion \no--'ta--sh*n\ \-shn*l, -sh*n-*l\ n [L notation-, notatio, FR. 
   notatus, pp. of notare to no]te 1: ANNOTATION, NOTE  2a: the act, process, 
   method, or an instance of representing by a system or  set of marks, signs, 
   figures, or characters 2b: a system of characters, symbols, or abbreviated 
   expressions used in an  art or science to express technical facts, 
   quantities, or other data - no.ta.tion.al aj