Word Study
geniculate
CIDE DICTIONARY
geniculate, 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]
geniculate, v. t.
To form joints or knots on. Cockeram. [1913 Webster]
For further exploring for "geniculate" in Webster Dictionary Online