Phrase guide

lunar caustic

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

Silver nitrate fused into a stick and used for cauterizing and as a disinfectant before modern antibiotics.

Definition source: English Wiktionary via Wiktextract

Usage: obsolete, uncountable

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

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: infernal stone, lapis infernalis

Antonyms: none provided

2

noun

Meaning 2

silver nitrate fused into sticks and formerly used as a caustic

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: silver nitrate

History

Etymology

From lunar (“[alchemical] silver”) + caustic.

Across languages

Translations

4 source translations are retained for this English entry.

  • Bulgarian: адски камък (adski kamǎk) — silver nitrate fused into a stick
  • Esperanto: lapiso — silver nitrate fused into a stick
  • Finnish: laapispuikko — silver nitrate fused into a stick
  • German: Höllenstein — silver nitrate fused into a stick