[1] : The Collaborative International Dictionary of English v.0.48

infix notation \in"fix nota"tion\, n. computers
   a notation for commands or instructions in which the operator
   is inserted between the terms on which it operates.
   contrasted with prefix notation and postfix notation.
see also:
prefix notation postfix notation 

[2] : WordNet (r) 2.0

infix notation
     n : a notation for forming mathematical expressions using
         parentheses and governed by rules of operator precedence;
         operators are dispersed among the operands

[3] : The Free On-line Dictionary of Computing (27 SEP 03)

infix notation
     
         one of the possible orderings of functions and
        operands: in infix notation the functions are placed between
        their operands, such as "1+2".  although infix notation is
        limited to binary functions most languages mix infix notation
        with prefix or postfix notation, as a form of syntactic
        sugar.
     
        1997-01-17
     
     
see also:
functions operands prefix postfix syntactic sugar 

Notation >> N Words
Notation, definition of term: Notation
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Infix >> I Words
Infix, definition of term: Infix
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