Definition

Referring to a system or device that does not use a storage tank for holding water or other substances, often used in the context of water heaters that heat water on demand.

Example

Many homeowners prefer tankless water heaters because they provide hot water instantly without the need for a large storage tank.

Conversation

Have you heard about the new tankless water heaters?

Yeah, I read they're really efficient and save space.

I think I might get one for my apartment.

That sounds smart! They seem like a great option for smaller places.

Synonyms & Antonyms

Root Explanation

Tankless → It is formed from "tank" (from Middle English *tanke*, meaning a container for holding liquid) and "-less" (meaning without). The word "tankless" describes something that does not have a tank, particularly in reference to water heaters that do not store hot water in a tank.

Memory Tip

Think of a 'tank' as a container for holding water, and '-less' means without. So, a tankless water heater is one that operates without a container for storing hot water.

Visually Confused Words