WORD.OF.THE.DAY.........................
caustic (KAW-stik) adjective................................ 1. Capable of burning or corroding. 2. Highly critical; sarcastic. [From Latin causticus, from Greek kaustikos, from kaustos (combustible), from kaiein, (to burn).] Caustic soda (Sodium hydroxide) is a highly corrosive substance used in... Sign in to see full entry.