Parabola

/pəˈræb.ə.lə/

Meaning & Definition

noun

A symmetrical curved shape that represents the graph of a quadratic function, defined as the locus of points equidistant from a point (focus) and a line (directrix).

The trajectory of the ball created a perfect parabola as it arced through the air.

In mathematics, a section of a conic section that can be open or closed, depending on the orientation of the plane cutting through the cone.

When studying conic sections, we learned that a parabola can be formed when the plane is parallel to the edge of the cone.

In literature, a parable or a moral story that conveys a message, often through analogy.

The teacher used a parable to illustrate the importance of honesty, making it easier for students to understand the lesson.

Etymology

From Latin 'parabola', from Greek 'parabole' meaning 'comparison'.

Common Phrases and Expressions

parabola of motion

The trajectory of a projectile follows a parabola.

parabolic shape

Referring to the curved shape that resembles a parabola.

Related Words

quadratic

Relating to a polynomial of degree two, often represented as a parabolic equation.

focus

The point from which distances are measured in the definition of a parabola.

directrix

A fixed line used in the definition of a parabola.

Slang Meanings

To describe a situation that follows a predictable trajectory.

His career took a parabola from unknown to superstar.

To talk in a convoluted or overly elaborate manner.

Stop being so parabola about your story; just tell me what happened.