Definition

Describing something that does not have any valves.

Example

The valveless design of the pump allows for smoother operation.

Conversation

Did you know that some musical instruments are valveless?

Really? I didn't realize that! How does that even work?

I think it just means they don't have any valves to change the notes.

That sounds interesting! I wonder how that affects the sound.

Synonyms & Antonyms

Root Explanation

Valveless → It is formed from "valve" (from Latin "valva", meaning a folding door or flap) and "-less" (meaning without). The word "valveless" means without a valve or flap.

Memory Tip

Think of a 'valve' as a flap that controls flow, and remember that 'valveless' means lacking that flap.

Visually Confused Words