English Reference

Word

epilepsy

Phoneticsepilep·sy

US/ˈɛpəˌɫɛpsi/

UK/ˈɛpɪlˌɛpsi/

Definition

n. a medical condition that affects the brain and causes a person to have seizures. These seizures are sudden bursts of electrical activity that can cause shaking or loss of consciousness.

n. a neurological disorder characterised by recurrent, unprovoked seizures resulting from abnormal electrical activity in the brain.

Examples

“He takes daily medication to manage his epilepsy.”

“After being diagnosed with epilepsy, she worked with her doctor to identify specific triggers that might cause a seizure.”

“Advances in neurology have led to a better understanding of epilepsy, allowing for more targeted treatments that significantly reduce the frequency of episodes for many patients.”

Examples

simple

“He takes daily medication to manage his epilepsy.”

contextual

“After being diagnosed with epilepsy, she worked with her doctor to identify specific triggers that might cause a seizure.”

complex

“Advances in neurology have led to a better understanding of epilepsy, allowing for more targeted treatments that significantly reduce the frequency of episodes for many patients.”

Usage

Usually uncountable when referring to the condition; can be countable when referring to specific types of the disorder.

Real-World Examples

“Scientists could use it to investigate how signals travel through different layers of the brain during processes involving epilepsy, memory, and decision-making.”
ScienceDaily · 21 Sept 2026
“Some drugs for people with epilepsy and Parkinson's can block sweating and make it harder for the body to cool itself.”
BBC News · 22 Jun 2026

Etymology

Since 16th century; borrowed from French épilepsie, from Latin epilēpsia, from Ancient Greek ἐπιληψίᾱ (epilēpsíā), from ἐπιλαμβάνω (epilambánō, “I seize”), from ἐπι- (epi-, “upon”) + λαμβάνω (lambánō, “I take”). Displaced native Old English fiellesēocnes (literally “falling sickness”).

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

Word family

epilepsyNounepilepticNoun

This entry

Level
B2 · Upper Intermediate
Frequency
Frequent
Updated

Scan code

englishreference.com/q/epilepsy

English Reference