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Coefficient - Meaning, Definition & English Examples

A coefficient is a numerical or constant factor in an algebraic term that multiplies a variable. It indicates how much the variable contributes to the overall expression.

coefficient

/ˌkoʊəˈfɪʃənt/ /ˌkəʊɪˈfɪʃənt/

Definition:

A numerical or constant factor in a term of an algebraic expression or scientific formula.

Synonyms:

factor, multiplier, constant, parameter

Part of Speech:

noun

Antonyms:

variable, unknown

Common Collocations:

correlation coefficient, drag coefficient, expansion coefficient, friction coefficient

Derivatives:

coefficients, coefficiently (rare)

Usage Tips:

Use "coefficient" to describe multiplicative factors in math or science formulas for clarity and precision.

Common Phrases:

coefficient of friction, correlation coefficient, expansion coefficient

Etymology:

From Latin "coefficient-" (co- + efficient), meaning "working together" in mathematical terms since the 17th century.

Examples:

  • 1. The coefficient in this equation is 3x² + 2x + 1 is 3 for x².
  • 2. Scientists calculated the drag coefficient to improve the car's aerodynamics.
  • 3. The correlation coefficient shows a strong relationship between study time and test scores.
  • 4. In physics, the expansion coefficient measures how materials expand with temperature changes.

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