residue

word

/ˈɹɛzəˌdu/
REZ-uh-doo
/ɹˈɛsɪdjˌuː/
REZ-i-dyoo

Definition

The small amount of something that is left behind after the main part has been removed, used, or taken away. It often refers to a substance left over after a chemical or physical process.

Usage & Nuances

Most often used in scientific or technical contexts, such as chemistry ('chemical residue'), food safety ('pesticide residue'), or cleaning. It can refer to both solid and liquid remains. Less common in casual conversation.

Example Sentences

Please wipe the residue off the table.

basic

The scientist tested the chemical residue left in the test tube.

basic

Even after washing the pan, there's often some greasy residue left.

natural

If you burn a candle, you'll notice a black residue on the jar after a while.

natural

After boiling the soup, there was a thick residue at the bottom of the pot.

basic

There's a lot of pesticide residue on non-organic fruits, so I always wash them well.

natural