Phrase guide

bleaching powder

noun · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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No pronunciation record was provided for this word.

1

noun

Meaning 1

A white powder, a mixture of calcium hypochlorite and calcium chloride, prepared by the action of chlorine on calcium hydroxide, used as a strong bleaching agent and disinfectant. Formula: Ca(ClO)2.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

a white powder comprised of calcium hydroxide and chloride and hypochlorite and used to bleach and/or disinfect

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: chlorinated lime, chloride of lime

Antonyms: none provided

Broader terms: bleaching agent, bleach, blanching agent, whitener

History

Etymology

No etymology was provided for this word.

Across languages

Translations

2 source translations are retained for this English entry.

  • Irish: púdar tuaracháin — a mixture of calcium hypochlorite and calcium chloride
  • Russian: хло́рная и́звесть (xlórnaja ízvestʹ) — a mixture of calcium hypochlorite and calcium chloride