# parabola

[ puh-rab-uh-luh ]

/ pəˈræb ə lə /

Save This Word!

noun Geometry.

a plane curve formed by the intersection of a right circular cone with a plane parallel to a generator of the cone; the set of points in a plane that are equidistant from a fixed line and a fixed point in the same plane or in a parallel plane. Equation: y2 = 2px or x2 = 2py.

QUIZ

TEST YOUR MERIT ON THESE NEW WORDS IN 2021

The Dictionary added new words and definition to our vast collection, and we want to see how well-versed you are in the formally recognized new lingo. Take the quiz!

Question 1 of 8

What does JEDI stand for?

Meet Grammar CoachImprove Your Writing

## Origin of parabola

1570–80; <New Latin <Greek parabolḗ an application. See parable

## Words nearby parabola

Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

## How to use parabola in a sentence

13 Synonyms For “Champion” That Will Make Your Language Unrivaled

Why Do “Left” And “Right” Mean Liberal And Conservative?

16 French Loanwords That Add Some Panache To English

“Misinformation” vs. “Disinformation”: Get Informed On The Difference

What Is The Difference Between “It’s” And “Its”?

Compete For Linguistic Gold With These Olympics Words

## British Dictionary definitions for parabola

parabola

/ (pəˈræbələ) /

noun

a conic section formed by the intersection of a cone by a plane parallel to its side. Standard equation: y ² = 4 ax, where 2 a is the distance between focus and directrix

## Word Origin for parabola

C16: via New Latin from Greek parabolē a setting alongside; see parable

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 parabola

parabola

[ pə-răb′ə-lə ]

The curve formed by the set of points in a plane that are all equally distant from both a given line (called the directrix) and a given point (called the focus) that is not on the line.

The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

## Cultural definitions for parabola

parabola

[ (puh-rab-uh-luh) ]

A geometrical shape (see geometry) consisting of a single bend and two lines going off to an infinite distance.

## notes for parabola

The New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.