octahydrate

O1C3T1A1H4Y4D2R1A1T1E1

noun

A hydrate whose solid contains eight molecules of water of crystallization per molecule, or per unit cell.

OriginEnglish hydrate ← French hydrate ← Ancient Greek ὀκτᾰ- (oktă-) →
Scrabble 20
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Meanings

nounoctahydrate (plural octahydrates)

plural octahydrates

  1. chemistryA hydrate whose solid contains eight molecules of water of crystallization per molecule, or per unit cell.

Synonyms & antonyms

Also see
octaqua

Origin

  1. Proto-Indo-European*oḱtṓw
  2. Proto-Hellenic*oktṓ
  3. Ancient Greekὀκτώ (oktṓ)
  4. Ancient Greekὀκτᾰ- (oktă-)
  5. Englishocta-
  6. Frenchhydrate
  7. Englishhydrate
  8. Englishoctahydrate

From octa- + hydrate.

Full word history & related roots →
Cite this entry
APA

octahydrate. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/octahydrate

MLA

“octahydrate.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/octahydrate. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “octahydrate,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/octahydrate.

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