"caustic" in German caustic Ätzmittel Kaustikum Kaustik Detailed translations for "caustic" caustic 1. medicine caustic(also: cautery, cauterant, pyrotic agent, etchant) das Ätzmittel{neuter} caustic(also: cautery, cauterant, pyrotic agent, etchant) das Kaustikum{neuter} 2. other caustic die Kaustik{feminine} English synonyms for "caustic" caustic {s} acerb acerbic acid acrid bitter blistering corrosive erosive mordant sulfurous sulphurous virulent vitriolic