
1) Revolutionary calendar month
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https://www.crosswordclues.com/clue/vendemiaire

Vendémiaire (vɑ̃demjɛʁ) was the first month in the French Republican Calendar. The month was named after the Occitan word vendemiaire (grape harvester). Vendémiaire was the first month of the autumn quarter (mois d`automne). It started on the day of the autumnal equinox, which fell between 22 September and 24 September, inclusive. It thus e....
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http://en.wikipedia.org/wiki/Vendémiaire

• (n.) The first month of the French republican calendar, dating from September 22, 1792.
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http://thinkexist.com/dictionary/meaning/vendemiaire/
Ven`dé`miaire' noun [ French, from Latin
vindemia vintage.] The first month of the French republican calendar, dating from September 22, 1792. » This calendar was substituted for the ordinary calendar, dating from the Christian era, by a decree of the National Convention in 1793. The ...
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http://www.encyclo.co.uk/webster/V/12

The Vendemiaire is a French Floreal Class patrol frigate of 2600 tons displacement launched in 1993, and officially described as 'Fregates de Surveillance' and designed to operate in the offshore zone in low intensity operations. She is powered by SEMT-Pielstick 6PA 6L280 diesels rated at 8800 hp providing a top speed of 20 knots and a range of 144...
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http://www.probertencyclopaedia.com/browse/RV.HTM

[
n] - first month of the Revolutionary calendar (September and October)
Found on
http://www.webdictionary.co.uk/definition.php?query=Vendemiaire
noun first month of the Revolutionary calendar (September and October); the month of the grape harvest
Found on
https://www.encyclo.co.uk/local/20974
No exact match found.