Hydroxide

//haɪˈdɹɒks.aɪd// noun

noun ·Uncommon ·Advanced level

Definitions

Noun
  1. 1
    A univalent anion (OH⁻) based on the hydroxyl functional group.

    "A sample of carbon removed from the ocean in the solid form of calcium carbonate and magnesium hydroxide from UCLA's SeaChange program -- now known as Equatic -- in 2023."

  2. 2
    a chemical compound containing the hydroxyl group wordnet
  3. 3
    Any substance containing such an anion.
  4. 4
    a compound of an oxide with water wordnet

Synonyms

All synonyms
alcoholchemicalhydrated oxidehydronium

Example

More examples

"Sodium hydroxide is quite hygroscopic."

Etymology

From hydro- + oxide.

Related phrases

aluminium hydroxidealuminum hydroxideammonium hydroxidebarium hydroxideberyllium hydroxidecadmium hydroxidecaesium hydroxidecalcium hydroxidecesium hydroxideethyl hydroxidegallium hydroxidehydrogen hydroxide

More for "hydroxide"

SynonymsSentencesPronunciationTranslate

Next best steps

Find stronger synonymsSee usage examplesCheck pronunciationBrowse writing guides

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.