© 2026 Sloth Lingo. Learn easy. Lounge wisely.

disinfectant

Intermediate (B1)

IPA: //ˌdɪsɪnˈfɛktənt//

KK: /ˌdɪsɪnˈfɛktənt/

adjective
Definition

A substance that is used to kill germs and bacteria on surfaces or in the air.


Example

The hospital uses a strong disinfectant to keep the environment clean and safe.


Conversation
Sloth A
Did you see that new disinfectant spray they have at the store?
Sloth B
Yeah, I heard it works really well against germs.
Sloth A
I think I might get some for my kitchen.
Sloth B
That's a great idea! Keeping things clean is so important.

Synonyms & Antonyms
Synonyms
sanitizing
sterilizing
cleansing
Antonyms
contaminating
infectious
dirty
noun
Definition

A substance used to kill germs and bacteria on surfaces to prevent infection.


Example

The hospital uses a strong disinfectant to clean the operating rooms.


Conversation
Sloth A
I just bought some new disinfectant for the kitchen.
Sloth B
That's a good idea! Keeping things clean is really important.
Sloth A
Yeah, especially during cold and flu season.
Sloth B
Root Explanation

Disinfectant → It is formed from "dis-" (meaning apart) and "infectare" (meaning to infect). The word "disinfectant" refers to a substance that removes or destroys infection, effectively separating or removing the harmful agents.

Memory Tip

Think of something that works to 'remove' ('dis-') an 'infection' ('infectare') — that's why disinfectant is used to clean and purify.

Visually Confused Words
infectant
Is this page helpful?
Exactly! I always make sure to use disinfectant on high-touch surfaces.

Synonyms & Antonyms
Synonyms
sanitizer
cleanser
antiseptic
Antonyms
contaminant
infectant
pollutant