# Meaning of parameter in English

## Noun

parameter### Etymology

mid 17th century: modern Latin, from Greek para-‘beside’ + metron‘measure’### Definitions

1. a constant in the equation of a curve that can be varied to yield a family of similar curves- 2. any factor that defines a system and determines (or limits) its performance
- 3. a quantity (such as the mean or variance) that characterizes a statistical population and that can be estimated by calculations from sample data