D defs.my
Entry 2 senses Webster, 1913

Joinder

· Join·der · IPA
01 n. The act of joining; a putting together; conjunction.
  1. 1.
    The act of joining; a putting together; conjunction.
    “Confirmed by mutual joinder of your hands.” Shak.
  2. 2.
    A joining of parties as plaintiffs or defendants in a suit.(Law)