##### The Collaborative International Dictionary

**infix notation**

infix notation \in"fix no*ta"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.

##### Wiktionary

**infix notation**

n. (context mathematics English) Notation where operators appear between operands, for example ''a''+''b''

##### WordNet

**infix notation**

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

##### Wikipedia

**Infix notation**

**Infix notation** is the notation commonly used in arithmetical and logical formulae and statements. It is characterized by the placement of operators between operands – " infixed operators" – such as the plus sign in "2 + 2".