geniculate

1. Bent abruptly, as a knee.
2. Having kneelike joints; able to bend at an abrupt angle.

[Latin geniculātus, with bended knee, from geniculum, diminutive of genū, knee.]

1. Bent abruptly, as a knee.
2. Of, relating to, or being the geniculate body or geniculate ganglion.
3. Having kneelike joints; able to bend at an abrupt angle.

Bent, like a knee.

• g. body — see geniculate body (lateral).
• g. ganglion — see geniculate ganglion.

Describing “kneelike” intergrowths of crystals; especially common in rutile and cassiterite.

The adjective has one meaning:

Meaning #1: (biology) bent at a sharp angle