quadratic

[ kwo-drat-ik ]

/ kwɒˈdræt ɪk /

Save This Word!

See synonyms for quadratic on Thesaurus.com

adjective

square.

Algebra. involving the square and no higher power of the unknown quantity; of the second degree.

noun

a quadratic polynomial or equation.

QUIZ

CAN YOU ANSWER THESE COMMON GRAMMAR DEBATES?

There are grammar debates that never die; and the ones highlighted in the questions in this quiz are sure to rile everyone up once again. Do you know how to answer the questions that cause some of the greatest grammar debates?

Question 1 of 7

Which sentence is correct?

His boss, whom he admires, is waiting to meet with him about the big project.

His boss, who he admires, is waiting to meet with him about the big project.

TAKE THE QUIZ TO FIND OUT

Origin of quadratic

First recorded in 1650–60; quadrate + -ic

OTHER WORDS FROM quadratic

quad·rat·i·cal·ly, adverb

Words nearby quadratic

quadraphonic, quadraphonics, quadraphony, quadrat, quadrate, quadratic, quadratic equation, quadratic form, quadratic formula, quadratic residue, quadratics

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use quadratic in a sentence

Whether you figured this out by inspection or the quadratic formula, the two numbers were 24 and 30.
How High Should You Climb Up The Tower?|Zach Wissner-Gross|July 1, 2022|FiveThirtyEight
He’s an unabashed geek whose eyes spark when he alights upon one of his favorite concepts, whether it be quadratic voting or the governance system futarchy.
The Man Behind Ethereum Is Worried About Crypto's Future|Andrew R. Chow/Denver|March 18, 2022|Time
By the way, this quadratic relationship means you can generate loads of pieces without making too many cuts.
Can You Tune Up The Truck?|Zach Wissner-Gross|January 28, 2022|FiveThirtyEight
This is just one example of what’s called a quadratic polynomial, in which the variable is raised to the second power.
Mathematicians Set Numbers in Motion to Unlock Their Secrets|Kelsey Houston-Edwards|February 22, 2021|Quanta Magazine

“When I was in third grade, I was in quadratic equations when my class was, like, reading clocks,” Andraka says.
Sundance Offers Brief Documentary Films as Part of Focus Forward Project|Kevin Fallon|January 24, 2013|DAILY BEAST
As a teen, Randy had painted a submarine, an elevator door and the quadratic equation on the walls of his childhood bedroom.
Randy Pausch Keeps Talking|Jeffrey Zaslow|October 8, 2008|DAILY BEAST
For more exact work, the new concentrations of the three components may be found by solving a simple quadratic equation.
The Elements of Qualitative Chemical Analysis, vol. 1, parts 1 and 2.|Julius Stieglitz
She now began to read Euclids Elements, and proceeded in algebra as far as quadratic equations.
The Book of Curiosities|I. Platts
The ordinary schoolboy would correctly treat this as a quadratic equation.
Amusements in Mathematics|Henry Ernest Dudeney
Augustus set going new quadratic ones of his own, with an index and cross-references.
The Jimmyjohn Boss and Other Stories|Owen Wister
The next three propositions contain problems which may be said to be solutions of quadratic equations.
Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 6|Various

British Dictionary definitions for quadratic

quadratic

/ (kwɒˈdrætɪk) maths /

noun

Also called: quadratic equation an equation containing one or more terms in which the variable is raised to the power of two, but no terms in which it is raised to a higher power

adjective

of or relating to the second power

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for quadratic

quadratic

[ kwŏ-drăt′ĭk ]

Relating to a mathematical expression containing a term of the second degree, such as x2 + 2.♦ A quadratic equation is an equation having the general form ax2 + bx + c = 0, where a, b, and c are constants.♦ The quadratic formula is x = -b ± √(b2 - 4ac)/2a. It is used in algebra to calculate the roots of quadratic equations.

quadratic

Origin of quadratic

OTHER WORDS FROM quadratic

Words nearby quadratic

Words related to quadratic

How to use quadratic in a sentence

British Dictionary definitions for quadratic

Scientific definitions for quadratic