a. [ L. geniculatus, fr. geniculum little knee, knot or joint, dim. of genu knee. See Knee. ] Bent abruptly at an angle, like the knee when bent; as, a geniculate stem; a geniculate ganglion; a geniculate twin crystal. [ 1913 Webster ]
(n) one of four small oval masses that protrude slightly from the underside of the thalamus and function as synaptic centers on the way to the cerebral cortex