Deleterious Soft redirect to Wiktionary Wikipedia does not have an article on "deleterious", but its sister project Wiktionary does: Read the Wiktionary entry "deleterious" You can also: Search for Deleterious in Wikipedia to check for alternative titles or spellings. Start the Deleterious article, using the Article Wizard if you wish, or add a request for it; but please remember that Wikipedia is not a dictionary.wiktionary:deleterious
