Definition

Having the shape or characteristics of a wave that varies in a smooth, regular pattern, similar to the sine function in mathematics.

Example

The sound waves produced by the instrument were sinusoidal, creating a smooth and harmonious tone.

Conversation

Have you seen the new physics project we have to do?

Yeah, I heard it involves a lot of sinusoidal functions.

Exactly! I’m a bit worried about understanding the wave patterns.

Don’t stress too much; once you get the hang of sinusoidal graphs, it will be easier.

Synonyms & Antonyms

Root Explanation

Sinusoidal → It is formed from "sinus" (from Latin, meaning curve or fold) and "-oidal" (from Greek "-oeides", meaning resembling or having the form of). The word "sinusoidal" refers to something that has the shape or characteristics of a sine wave, which is a smooth periodic oscillation.

Memory Tip

Think of a 'curve' ('sinus') that 'resembles' ('-oidal') a wave — that's why sinusoidal describes a wave-like shape.

Visually Confused Words