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Definition of repeller

repeller

/rɪˈpɛl.ər/
re · pel · ler
Adverb:repellently
•
Plural:repellers
•
Adjective:repellent
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repeller Lexical Profile

repeller Game Scores & Validity

• noun

1

A device, substance, or agent that drives back, wards off, or deters something unwanted, especially an electronic device used to keep pests away.

Example

"The homeowner installed a solar-powered ultrasonic repeller in the garden to keep rodents away from the vegetable patch."

2

In physics and electronics, an electrode in an electron tube (such as a reflex klystron) that reverses the direction of an electron beam.

Example

"Adjusting the negative voltage applied to the repeller alters the transit time of the electrons inside the cavity."

Synonyms
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Antonyms
View all antonyms for repeller

Word Nuance & Usage

While "repellent" is typically used for chemical sprays, lotions, or coatings (e.g., insect repellent), "repeller" usually refers to a mechanical or electronic device (e.g., an ultrasonic pest repeller).

• Rhymes for repeller

• Nearby Words

repel
repellency
repellent
repeller
repent
repentance
repentant

Cite this Entry

Wordmom. (2026). Definition of Repeller. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/repeller
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