pentachloro

P3E1N1T1A1C3H4L1O1R1O1

noun

Five chlorine atoms in a compound

OriginEnglish chloro- ← Ancient Greek πεντᾰ- (pentă-) ← Proto-Hellenic *pénkʷe →
Scrabble 18
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Meanings

nounpentachloro (uncountable)
  1. in compoundsuncountablechemistryFive chlorine atoms in a compound

Origin

  1. Proto-Indo-European*pénkʷe
  2. Proto-Hellenic*pénkʷe
  3. Ancient Greekπέντε (pénte)
  4. Ancient Greekπεντᾰ- (pentă-)
  5. Englishpenta-
  6. Englishchloro-
  7. Englishpentachloro

From penta- + chloro-.

Full word history & related roots →

Rhymes & wordplay

Anagrams

nectophoralctenophoral
Cite this entry
APA

pentachloro. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/pentachloro

MLA

“pentachloro.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/pentachloro. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “pentachloro,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/pentachloro.

Source: pentachloro on Wiktionary, CC BY-SA 4.0.