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Thermidor

American  
[thur-mi-dawr, ter-mee-dawr] / ˈθɜr mɪˌdɔr, tɛr miˈdɔr /

noun

  1. Also called Fervidor.  (in the French Revolutionary calendar) the 11th month of the year, extending from July 19 to August 17.

  2. (sometimes lowercase) lobster thermidor.


Thermidor British  
/ tɛrmidɔr /

noun

  1. Also: Fervidor.  the month of heat: the eleventh month of the French revolutionary calendar, extending from July 20 to Aug 18

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of Thermidor

1820–30; < French < Greek thérm ( ē ) heat + dôr ( on ) gift; -i-

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.

Thermidor, as defined by Messrs. Haenni and Drevon, marked “the moment when the revolution confronted political reality” and was “forced to compromise on its initial ideas and promises.”

From The Wall Street Journal • Nov. 3, 2025

In Iceland, passengers on the Viking Sky consoled themselves with meals of lobster Thermidor and Dover sole after similarly being turned away from nearly every port they intended to visit.

From Seattle Times • Aug. 15, 2021

“This country has nothing to offer,” said 36-year-old Thermidor Joam.

From Washington Times • Jul. 10, 2021

And for the authors of the cockroach application — Jason Li, Melissa Thermidor, and Amanda Hickman — that includes the aftermath of a nuclear war.

From The Verge • Nov. 25, 2020

Robespierre the elder was carried to the City Hall, to the Committee of Public Safety, on the 10th Thermidor, between the hours of one and two in the morning.

From The Sword of Honor, volumes 1 & 2 or The Foundation of the French Republic, A Tale of The French Revolution by Sue, Eug?ne