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Discuss Email this Feedback RSS/XML Permalink A.Word.A.Day--caustic This week's theme: words from chemistry. 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 the manufacture of soap, paper, and textiles. Today's word in Visual Thesaurus. -Anu Garg (garg wordsmith.org) "Some were outright sarcastic, others clearly caustic." Vijay Mruthyunjaya; ICC's Hairobics Baffle; Gulf Daily News (Bahrain); Aug 28, 2006. X-Bonus In the small matters trust the mind, in the large ones the heart. -Sigmund Freud, neurologist, founder of psychoanalysis (1856-1939)

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