Definition

A straight line that crosses a curve at two or more points, often used in geometry and trigonometry.

Example

In geometry, a secant can be used to find the points where a line intersects a circle.

Conversation

Have you ever heard of a secant?

Yeah, I learned about it in math class!

Right! It's the line that cuts a curve at two points, right?

Exactly! I found it interesting how it relates to circles.

Synonyms & Antonyms

Root Explanation

Secant → It is formed from "se-" (meaning apart) and "caedere" (meaning to cut). The word "secant" refers to a line that cuts across another line, particularly in geometry.

Memory Tip

Think of a line that 'cuts across' ('caedere') something 'apart' ('se-') — that's why secant refers to a line that intersects another.

Visually Confused Words