enzyme

word

Definition

A substance produced by living organisms that speeds up chemical reactions in the body, such as breaking down food or making new molecules.

Usage & Nuances

Mostly scientific and medical. Always countable: 'an enzyme', 'enzymes'. Common phrases: 'digestive enzyme', 'enzyme activity'. Do not confuse with 'hormone' (which sends signals, not speeds up reactions).

Example Sentences

A lack of a certain enzyme can cause disease.

basic

An enzyme helps your body break down food.

basic

Human cells produce many different enzymes.

basic

Many cleaning products use natural enzymes to remove stains.

natural

Digestive problems often happen when your body doesn't make enough enzymes.

natural

Lactase is the enzyme that helps people digest milk.

natural