# Definition of *parameter* in English:

## parameter^{}

See synonyms for parameterTranslate parameter into Spanish

### noun

1 technical A numerical or other measurable factor forming one of a set that defines a system or sets the conditions of its operation.

*‘the transmission will not let you downshift unless your speed is within the lower gear's parameters’**‘The programming uses script files that contain specific system parameters to operate in each of these modes.’**‘The set of code modules includes code modules associated with a plurality of system configuration parameters.’**‘Now we need to optimize the system and improve its operation parameters and design.’**‘The first circuit is configured to monitor an electrical operating parameter associated with operation of the CAN bus.’**‘An operator can input the parameters that define the geometry of the valve seat profile.’*

View synonyms**instructions**, stipulations, requirements, conditions, provisions, restrictions, provisos, guidelines, parameters, order- 1.1Mathematics A quantity whose value is selected for the particular circumstances and in relation to which other variable quantities may be expressed.
*‘As gene diversity is a continuous variable, the expected value of the parameter was calculated using a sliding window of 0.0125.’**‘Choosing different values for the various parameters in the equation he then tried to investigate when situations were stable and when they were unstable.’**‘The real effort goes into testing these hypotheses and calculating the true values of parameters such as N.’**‘On the other hand, keeping m and n fixed for a few trials leaves a lot of room to experiment with the third parameter even for small values of m and n.’**‘The x-axis is the value of the selection parameter in the PRF model under which the data were simulated.’*

- 1.2Statistics A numerical characteristic of a population, as distinct from a statistic of a sample.
*‘Such a ‘rate’ can be modeled statistically by the probability parameter of a binomial distribution.’**‘The spiral pattern is sufficiently regular that it leads to a numerical parameter characteristic for the species, called its divergence.’**‘Typically, polymorphism in a sample is needed to perform those tests and estimate population parameters.’**‘This will remind test users that the reliability coefficient in hand is not the population parameter and that the reliability estimate is affected by sampling error.’**‘The normal curve approach to inference begins by asserting a null hypothesis that is expressed using population parameters.’*

- 1.3(in general use) a limit or boundary that defines the scope of a particular process or activity.
*‘they set the parameters of the debate’**‘First, I do not accept the framework you outline above as limiting the parameters of our debate.’**‘However, I can't get away from the fact that my guiding parameters are somewhat limited by my lack of motoring knowledge.’**‘One of the main benefits of a home birth is the amount of control a mother can exercise over the location and parameters of the birthing process.’**‘Such a voluntary approach is limited to the parameters the company sets for itself.’**‘And so, media debate is restricted within tightly constrained parameters that serve capital, but not democracy.’*

View synonyms**framework**, variable, limit, boundary, limiting factor, limitation, restriction, specification, criterion, guideline

**Pronunciation**

**Usage**

Until recently, use of the word parameter was confined to mathematics and related technical fields. Since around the mid 20th century, however, it has been used in nontechnical fields as a technical-sounding word for ‘a limit or boundary,’ as in they set the parameters of the debate. This use, probably influenced by the word perimeter, has been criticized for being a weakening of the technical sense. Careful writers will leave parameter to specialists in mathematics, computer science, and other technical disciplines. As a loose synonym for limit, boundary, guideline, framework, it is a vogue word that blurs more than it clarifies. Perimeter is a different word, meaning ‘border, outer boundary, or the length of such a boundary.’

**Origin**

Mid 17th century modern Latin, from Greek para- ‘beside’ + metron ‘measure’.