What is "lambda expression"

n. An algebraic expression representing a function by binding one or more parameters to an expression which may contain those parameters.

Lambda expression may refer to:

• lambda expression in computer programming, also called anonymous function, a function (or a subroutine) defined, and possibly called, without being bound to an identifier
• Lambda expression in Lambda calculus, a formal system in mathematical logic and computer science for expressing computation by way of variable binding and substitution