acid is a crossword puzzle answer that we have spotted 18 times. Sour Tart Biting Bitter Vitriolic Sarcastic Sour in taste Corrosive liquid Hydrochloric ... Corrosive chemical chemical substance Corrosive substance sharp as a group of police sharp as a group of detectives Substance with pH of less than seven A corrosive liquid that will burn skin Tranquil hiding place for illegal substance a detective force revealing destructive chemical