# polynomial

/ˌpɑˌɫiˈnoʊmiəɫ/ (US) · /pˌɒlɪnˈəʊmɪəl/ (UK) · CEFR C1 · Noun

Source: https://englishreference.com/word/polynomial
Updated: 2026-05-08

## Definition

a mathematical expression that is made of several parts added together. Each part usually has a number and a letter raised to a power, like 3x² + 2x + 5.

For teachers: an algebraic expression consisting of variables and coefficients, involving only the operations of addition, subtraction, multiplication, and non-negative integer exponents. Often used in the context of calculus and coordinate geometry.

## Examples

- The teacher asked us to solve the polynomial for x.
- Engineers use a polynomial to model the curve of the bridge's support cables.
- While a linear equation represents a straight line, a higher-degree polynomial can describe complex curves and fluctuations in data sets over time.

## Usage notes

- Commonly paired with 'degree' to describe the highest power of the variable.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.