Definition

To take away or remove the fuel from something, such as a vehicle or a machine.

Example

The technicians need to defuel the aircraft before maintenance can begin.

Tense Forms

Conversation

Did you hear they are going to defuel the rocket before the test launch?

Yeah, I read that it’s a safety precaution.

I wonder how long it takes to defuel something like that.

Probably not too long, but it’s a crucial step to avoid accidents.

Synonyms & Antonyms

Root Explanation

Defuel → It is formed from "de-" (meaning down or away) and "fuel" (from Old French *fouaille*, meaning to supply with energy or power). The word "defuel" means to remove fuel or reduce the supply of energy.

Memory Tip

Think of 'removing' ('de-') the 'energy source' ('fuel') — that's why defuel means to take away fuel.

Visually Confused Words