POPPER Meaning of POPPER in English ■ noun1》 Brit. informal a press stud. 2》 informal a small vial of amyl nitrite used for inhalation, which makes a popping sound when opened. 3》 N. Amer. a utensil for making popcorn. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004