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hexachlorocyclopentadiène

French, noun/ɛɡ.za.klɔ.ʁɔ.si.klɔ.pɛ̃.ta.djɛn/

hexachlorocyclopentadiène is spelled H-E-X-A-C-H-L-O-R-O-C-Y-C-L-O-P-E-N-T-A-D-I-È-N-E (25 letters). Hexachlorocyclopentadiène is a French masculine noun meaning “hexachlorocyclopentadiene” (English Wiktionary, September 2026). The French Wiktionary (Wiktionnaire) defines it as “Dérivé du pentadiène (hydrocarbure), dont une molécule organique de même formule brute est employée comme…”.

What does hexachlorocyclopentadiène mean in English?

noun

  1. 1

    masculinehexachlorocyclopentadiene

Source: English Wiktionary, French section, dump of September 2, 2026 (CC BY-SA 4.0).

How French dictionaries define it

noun: 1. Dérivé du pentadiène (hydrocarbure), dont une molécule organique de même formule brute est employée comme insecticide.

The definition in the French Wiktionary (Wiktionnaire), in French.

Source: French Wiktionary (Wiktionnaire), dump of September 1, 2026 (CC BY-SA 4.0), through kaikki.org.

How do you pronounce hexachlorocyclopentadiène?

  • /ɛɡ.za.klɔ.ʁɔ.si.klɔ.pɛ̃.ta.djɛn/
  • \ɛɡ.za.klɔ.ʁɔ.si.klɔ.pɛ̃.ta.djɛn\

Sources: English Wiktionary, French Wiktionary (Wiktionnaire) (dumps of September 2, 2026 and September 1, 2026); recordings from Wikimedia Commons.

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