noun
parabola
puh-RAB-uh-luh
Parabola (noun) means a curve in which every point is the same distance from a fixed point, the focus, as from a fixed line, the directrix. Example: “The graph of a quadratic equation is a parabola.”
noun
1
technical A curve in which every point is the same distance from a fixed point, the focus, as from a fixed line, the directrix.
"The graph of a quadratic equation is a parabola."
"A ball thrown through the air follows a path close to a parabola."
"The mirror in the torch was shaped like a parabola."
How to use parabola
Learner’s notesIn plain EnglishA smooth, symmetrical curve, like the arc of a thrown ball.
When to use it
Mostly used in mathematics, physics and engineering.
Memory tip
A parabola is a curve, whereas a parable is a short story with a lesson.
Trace the full origin ↓
Easily confused with
Common pairings
graph of a parabola
vertex of a parabola
focus of a parabola
parabola opens upwards
Vocabulary Flow
Build your vocabulary from words like parabola.
Vocabulary Flow serves the next word, and the next — meaning, pronunciation and an example each time. Practice at your level, or learn English in your own language.
Start vocabulary practice
Fill the gap
Can you complete this real example?
The graph of a quadratic equation is a _____.
Etymology
Borrowed from New Latin, which took it from Ancient Greek parabolē. That Greek word comes from a verb meaning to set side by side, built from words for beside and to throw.
Rhymes for parabola
See all rhymes for parabola →Frequently asked questions
What is a parabola?
A parabola is a curve in geometry and one of the conic sections. Every point on it is the same distance from a fixed point, the focus, as from a fixed line, the directrix.
What is the plural of parabola?
The plural is parabolas or parabolae. Parabolas is the form most people use.
How do you pronounce parabola?
It is said puh-RAB-uh-luh, with the stress on the second syllable.
What is the meaning of parabola?
"parabola" (noun) means a curve in which every point is the same distance from a fixed point, the focus, as from a fixed line, the directrix.
