: epilepsy characterized by mild seizures marked by diminished awareness usually with a blank stare but not by loss of consciousness
also : one of these seizures compare grand mal

Examples of petit mal in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The spike-wave pattern of petit mal, referenced earlier, is a classic example, but scores of others are now known. Giridhar Kalamangalam, Discover Magazine, 4 Apr. 2024 Grand Mal and Petit Mal Seizures Grand mal and petit mal labels are not often used in clinical practice anymore, as seizure classification has become much more precise. Smita Patel, Verywell Health, 19 July 2024

Word History

Etymology

French, literally, small illness

First Known Use

1874, in the meaning defined above

Time Traveler
The first known use of petit mal was in 1874

Browse Nearby Words

Cite this Entry

“Petit mal.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/petit%20mal. Accessed 7 Jul. 2026.

Medical Definition

1
or petit mal epilepsy : epilepsy characterized by absence seizures : absence epilepsy
2
or petit mal seizure : absence seizure
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!