falc-, falx- +

(Latin: sickle)

falciform, falcate, falcular
Sickle-shaped.
falx (s), falces (pl)
1. A sickle-shaped structure or tissue.
2. Either the falx cerebri or the falx crebelli.
falx cerebelli
A fold of dura mater lying in the midsagittal plane, separating the two crebellar hemispheres.
falx cerebri
A midline fold of dura mater situated superiorly in the midsagittal plane that separates the two cerebral hemispheres.