anhydrous

A1N1H4Y4D2R1O1U1S1

adjective

Having little or no water.

Opposite
hydrous
OriginAncient Greek ὕδωρ →
Less commonScrabble 16
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Meanings

adjectiveanhydrous (comparative more anhydrous, superlative most anhydrous)

comparative more anhydrous · superlative most anhydrous

  1. Having little or no water.
  2. physicalchemistryHaving no water of crystallization.
    1 more example

    Volatiles of kecap manis and its raw materials were extracted using Likens-Nickerson apparatus with diethyl ether as the extraction solvent. The extracts were then dried with anhydrous sodium sulfate, concentrated using a rotary evaporator followed by flushing using nitrogen until the volume was about 0.5 ml.

    1997, A. J. Taylor, D. S. Mothram, editors, Flavour Science: Recent Developments, Elsevier, →ISBN, page 63

Synonyms & antonyms

adjectivewithout water; especially without water of crystallization

Opposite
hydrous
Also see
drieddrysere

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

  1. Ancient Greekὕδωρ“water”
  2. Englishanhydrous

From an- + Ancient Greek ὕδωρ (húdōr, “water”) + -ous.

More words from Ancient Greek

Full word history & related roots →

Translations

Afrikaans watervry, waterloos
  • watervryhaving no water
  • waterlooshaving no water
Catalan anhidre
  • anhidrehaving no water
Dutch vochtvrij, watervrij
  • vochtvrijhaving no water
  • watervrijhaving no water
Esperanto vandløs
  • vandløshaving no water
Finnish vedetön, anhydrinen
  • vedetönhaving no water
  • anhydrinenhaving no water
French anhydre
  • anhydrehaving no water
Greek άνυδρος
  • άνυδρος (ánydros)having no water
Irish ainhidriúil
  • ainhidriúilhaving no water
Italian anidro
  • anidrohaving no water
Māori waikore
  • waikorehaving no water
Norwegian Bokmål vannfri, vannløs
  • vannfrihaving no water
  • vannløshaving no water
Polish bezwodny
  • bezwodnyhaving no water
Portuguese anidro
  • anidrohaving no water
Russian безводный
  • безводный (bezvodnyj)having no water
Spanish anhidro
  • anhidrohaving no water
Tagalog awanhaydrohan
  • awanhaydrohanhaving no water
Cite this entry
APA

anhydrous. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/anhydrous

MLA

“anhydrous.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/anhydrous. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “anhydrous,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/anhydrous.

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