sulfuric acid sul·fu·ri·cacid uncommon noun 1. (H2SO4) a highly corrosive acid made from sulfur dioxide; widely used in the chemical industry Synonymsvitrioloil of vitriolsulfuric acidsulphuric acid Related words Broader terms acid Narrower terms battery acid Part of sulfur WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
