© 2026 Sloth Lingo. Learn easy. Lounge wisely.

peptone

Upper-Intermediate (B2)

IPA: /ˈpɛp.təʊn/

KK: /ˈpɛpˌtoʊn/

noun
Definition

A type of protein that has been broken down into smaller parts, which can dissolve in water. It is often used in laboratory cultures to help grow bacteria.


Example

The scientist added peptone to the culture medium to provide nutrients for the bacteria.


Conversation
Sloth A
Have you heard about the use of peptone in bacteriology?
Sloth B
Yeah, I read it helps in growing cultures in the lab.
Sloth A
Exactly! It's fascinating how something like peptone can make such a difference.
Sloth B
It really is! I had no idea proteins could be so useful.

Synonyms & Antonyms
Synonyms
protein
derivative
enzyme
Antonyms
carbohydrate
lipid
sugar
Root Explanation

Peptone is derived from "pept" (from Greek "peptein", meaning to digest) and the suffix "-one" (used in chemistry to denote a substance). The word "peptone" refers to a substance that is a product of protein digestion, indicating its role in the digestive process.

Memory Tip

Think of 'digesting' ('peptein') proteins to remember that 'peptone' is a substance formed during digestion.

Visually Confused Words
pretone
petronel
peastone
Is this page helpful?