D defs.my
Entry 2 senses Webster, 1913

Kneejoint

· Knee·joint · IPA
01 n. The joint of the knee.
  1. 1.
    The joint of the knee.
  2. 2.
    A toggle joint; -- so called because consisting of two pieces jointed to each other end to end, making an angle like the knee when bent.(Mach.)