(UK, pensions) Describing a pension scheme in which an employer agrees to provide a pension payment or lump sum on retirement that is based on the combination of the employer's and employee's contributions to the scheme over the employee's working life.

(computing) Created or defined by the user of a system, rather than being included in the original package.

(computing, dated) A graphic symbol defined by the user, replacing one of the text characters in the computer's character set.

plural of user-defined function

plural of user-defined graphic

(computing) A program or subroutine, provided by the user rather than being built into the system, that may return a value and may take input parameters.

(telecommunications) A radio that creates and receives radio signals through software controlled DSPs (digital signal processors) with ADCs (analog-to-digital converters) and DACs (digital-to-analog converters).

plural of software defined radio

In a way that defines something.