Alternative form of boom and bust, a pattern of great prosperity followed by recession

Alternative spelling of knocking shop

(aviation, travel) A callsign assigned to a commercial flight for the purposes of reservation and ticketing, typically consisting of a 2 character airline code and a 1 to 4 digit number to indicate...

(inorganic chemistry) The univalent anion BrO₂⁻ / (inorganic chemistry) Any salt of bromous acid