from The Century Dictionary and Cyclopedia
- n. In botany, a node or joint of a stem.
- n. In anatomy, a sharp bend in any small organ, such as that in the facial nerve where it passes through the temporal bone.
Sorry, no etymologies found.
The sensory root arises from the genicular ganglion, which is situated on the geniculum of the facial nerve in the facial canal, behind the hiatus of the canal.
The point where it changes its direction is named the geniculum; it presents a reddish gangliform swelling, the genicular ganglion (ganglion geniculi; geniculate ganglion; nucleus of the sensory root of the nerve) (Fig. 789).
 Literally, knee -- Latin geniculum.cf. Xen.,
Where is the first diverging point of the stems and roots in plants, that is to say, the first geniculum?