Popper, Sir Karl /kɑːl $ kɑːrl/
(1902–94) a British philosopher, born in Austria, who believed that ideas about the world must be proved scientifically. His best known book, The Open Society and its Enemies, is an attack on political systems in which the state has too much control, especially Communism.

[TahlilGaran] Dictionary of Contemporary English ▲

pop‧per /ˈpɒpə $ ˈpɑːpər/ noun

1. [countable] British English informal a small metal thing that is used to fasten clothes, which works when you press its two parts together Synonym : snap American English

2. poppers [plural] informal an illegal drug in the form of a liquid, which people take for pleasure by breathing it in

[TahlilGaran] Dictionary of Contemporary English ▲