Added 9 October 2026 corrosive /kəˈɹəʊsɪv/ noun Categories: NatureRare Words noun ! Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about corrosive at Wordnik → Where our words come from → A substance having the tendency to cause corrosion (such a strong acids or alkali). adjective Of a substance, especially a strong acid; capable of destroying or eating away by chemical action. Spitefully sarcastic. corrosive cristism Origin From Old French corrosif. From Wiktionary, via Kaikki.org (CC BY-SA) Related Words: causticerosivedestructivevitrioliccorrosionsoursublimateacidharmfulirritantsweetcorrupt Back to today's word