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1. Mathematics
a. A constant in an equation that varies in other equations of the same general form, especially such a constant in the equation of a curve or surface that can be varied to represent a family of curves or surfaces.
b. One of a set of independent variables that express the coordinates of a point.
a. One of a set of measurable factors, such as temperature and pressure, that define a system and determine its behavior and are varied in an experiment.
b. Usage Problem A factor that restricts what is possible or what results: "all the parameters of shelter—where people will live, what mode of housing they will choose, and how they will pay for it" (New York).
c. A factor that determines a range of variations; a boundary: an experimental school that keeps expanding the parameters of its curriculum.
3. Statistics A quantity, such as a mean, that is calculated from data and describes a population.
4. Usage Problem A distinguishing characteristic or feature.

[New Latin parametrum, a line through the focus and parallel to the directrix of a conic : Greek para-, beside; see para-1 + Greek metron, measure; see -meter.]

par′a·met′ric (păr′ə-mĕt′rĭk), par′a·met′ri·cal adj.
par′a·met′ri·cal·ly adv.
Usage Note: The term parameter, which originates in mathematics, has a number of specific meanings in fields such as astronomy, electricity, crystallography, and statistics. Perhaps because of its ring of technical authority, people have applied parameter more generally in recent years to refer to any factor that determines a range of variations and especially to a factor that restricts what results from a process or policy. In this use, the word parameter is used to mean "the particular value of a parameter," and comes close to meaning "a set limit or boundary." For example, a budget can be thought of as a set of parameters that determine a range of activity, much like a set of mathematical parameters that establish the range of effects, or limits, of other variables. The sentence A budget is a framework that defines the financial parameters within which an organization operates was considered acceptable by 81 percent of the Usage Panel in our 2004 survey. Parameter is sometimes used incorrectly when it does not denote a range of variation, as if it were a technical-sounding synonym for characteristic. In 1988, 88 percent of the Usage Panel rejected the sentence The Judeo-Christian ethic is one of the important parameters of Western culture. In 2004, 77 percent rejected this same sentence, suggesting that familiarity has not bred tolerance of this usage.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.parametric - of or relating to or in terms of a parameter; "parametric equation"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
With parametric insurance, you avoid lengthy claims investigations--basically, an index is triggered, a payout is made, no questions are asked, there are no disputes.
Around this question, a large body of literature came to exist over the past two decades using mainly parametric empirical specifications of the EKC model (see Stem 2004 and Pasten and Figueroa 2012 for a discussion on the links between the theory and its applications).
Parametric insurance covers are gaining popularity as an effective tool for providing protection to communities, particularly in the developing world.
ISLAMABAD -- aThe Federal Board of Revenue (FBR) on Thursday has selected 44,868 tax cases for audit through parametric computer ballot for the tax year 2016.
It is regarded as a potential way for generating a mid-infrared laser where the optical parametric oscillations (OPO) are pumped by diode-pumped solid-state lasers.
Insurers are searching for innovative ways to fill those gaps, and parametric insurance products are one of the solutions they're using.
In order to compare parametric and nonparametric stability measures, and to identify high-yield and stable bread wheat genotypes, 20 accessions were grown in a randomized complete block design with 3 replications under 6 irrigated and dryland conditions.
Liu [32] proposed the concept of parametric interval-valued fuzzy variable, which can handle the case of uncertainty contained in fuzzy possibility distribution.
The nonlinear response of a base-excited slender beam carrying a lumped mass subjected to principal parametric resonance is investigated.
One potential solution to reducing this lag and uncertainty is to increase the use of parametric insurance by NGOs.
Parametric Portfolio Associates launched this summer a series of U.S.