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Barding or barb, a type of armor for horses • A backward-facing point on a
fish hook or similar implement, rendering extraction from the victim's flesh more difficult • A type of pipe fitting called
barb, used to connect hosing (the ridges face backward, making insertion easy and removal difficult) • Barb, a shortened version of
barbiturate, a drug that acts as a depressant for the central nervous system ==Other uses==