D defs.my
Entry 3 senses Webster, 1913

Quadruplet

· Quad·ru·plet · IPA /kwɑˈdɹʌplət/
01 n. A collection or combination of four of a kind.
  1. 1.
    A collection or combination of four of a kind.
  2. 2.
    Four children born in the same labor.
  3. 3.
    A cycle for carrying four riders, so arranged that all the riders can assist in the propulsion.