Phrase guide

Rochelle salt

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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1

noun

Meaning 1

The double salt potassium sodium tartrate tetrahydrate (KNaC4H4O6·4H2O), used for various scientific and medical purposes.

Definition source: English Wiktionary via Wiktextract

Topics: chemistry, inorganic-chemistry, natural-sciences, physical-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

a double salt used in Seidlitz powder; acts as a cathartic

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: Rochelle salts, potassium sodium tartrate

Antonyms: none provided

Broader terms: double salt

History

Etymology

From La Rochelle in France.