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Definitions

enzyme

[en-zahym] / ˈɛn zaɪm /
NOUN
catalyst
Synonyms
STRONGEST
impetus incentive motivation stimulant
STRONG
adjuvant agitator goad impulse incendiary incitation incitement reactant reactionary spur synergist
WEAK
radical stimulus spark plug wave maker
Antonyms
STRONGEST
block hindrance
WEAK
blockage preventer prevention
NOUN
ferment
Synonyms
STRONG
bacteria bacterium barm ebullition leaven leavening mold seethe simmer yeast
WEAK
fermentation agent
Antonyms
WEAK
calm contentedness happiness peace pleasure
NOUN
leavening
Synonyms
STRONG
adjuvant agitator ferment goad impetus impulse incendiary incentive incitation incitement leaven motivation reactant reactionary spur stimulant synergist yeast
WEAK
radical stimulus spark plug wave maker
Antonyms
STRONG
block discouragement hindrance

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

In a study published in Science Advances, researchers from the University of Adelaide found that losing the enzyme Caspase-2 causes liver cells to grow abnormally.

From Science Daily • Mar. 23, 2026

Scientists have uncovered a surprising risk linked to blocking a cellular enzyme once believed to protect against fatty liver disease.

From Science Daily • Mar. 23, 2026

Instead of helping long term, shutting down this enzyme may raise the chances of chronic liver damage and cancer as people age.

From Science Daily • Mar. 23, 2026

This bacterium contains the enzyme needed to produce serotonin.

From Science Daily • Mar. 13, 2026

This enzyme occurs only in flies that possess a genetic factor for DDT resistance.

From "Silent Spring" by Rachel Carson

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.