quadratic

adjective

qua·​drat·​ic kwä-ˈdra-tik 

: involving terms of the second degree at most

quadratic function

quadratic equations

quadratic noun

quadratically

kwä-ˈdra-ti-k(ə-)lē 

adverb

Examples of quadratic in a Sentence

Recent Examples on the Web

The decision to settle on a cubic rather than quadratic function or even higher order polynomial is somewhat arbitrary. —Korok Ray, Forbes, 13 Oct. 2024

Latent growth curve analyses indicated that self-esteem follows a quadratic trajectory across the adult life span, increasing during young and middle adulthood, reaching a peak at about age 60 years, and then declining in old age. —Razib Khan, Discover Magazine, 2 Apr. 2010

And of course, quadratic reciprocity crops up repeatedly within number theory. —Quanta Magazine, 1 Nov. 2023

The shape provides ample stability, with quick edge control and a tapered linear quadratic sidecut that encourages easy transitions and reliable grip. —Nathan Borchelt, Travel + Leisure, 21 Dec. 2023

Word History

First Known Use

1668, in the meaning defined above

Phrases Containing quadratic

• quadratic equation
• quadratic form
• quadratic formula

Kids Definition

quadratic

1 of 2 adjective

qua·​drat·​ic

kwä-ˈdrat-ik

: involving or consisting of terms in which no variable is raised to a power higher than 2

a quadratic expression

a quadratic function

quadratic

2 of 2 noun

: a quadratic polynomial or equation