Definition

A section or part that represents one-eighth of a circle or a three-dimensional space divided by three perpendicular planes.

Example

The navigator used an octant to measure the angle of the stars in the night sky.

Conversation

Did you know that the universe is divided into eight parts called octants?

Really? I had no idea about that!

Yeah, it's interesting how they help astronomers pinpoint positions of stars.

That makes sense, especially when navigating the night sky.

Synonyms & Antonyms

Root Explanation

Octant → It is formed from "octo-" (meaning eight) and "-ant" (a suffix used to form nouns indicating an agent or something that performs an action). The word "octant" refers to one of eight equal parts, particularly in geometry or navigation.

Memory Tip

Think of the prefix 'octo-' meaning eight, which helps you remember that an octant is one of eight equal sections.

Visually Confused Words