implosives

/ɪmˈploʊsɪvz/
noun
  1. Speech sounds made by drawing air inward instead of pushing it out, found in some languages.
    • Linguists study implosives to understand how different languages use air pressure in speech.
    • The student practiced making implosives by pulling air into her mouth instead of blowing out.
    • Some African languages have implosives that sound like a soft popping noise.