plural of planum

A surname from Catalan.

The capital city of the province of Castelló, in the autonomous community of Valencia, Spain.

to flatten, or make into a plane

Of or pertaining to a plane. / Flat, two-dimensional. / (graph theory, of a graph) Able to be embedded in the plane with no edges intersecting.

a passerine bird of the antbird family, Thamnophilus pelzelni (syn. Thamnophilus punctatus pelzelni)

Any of various flatworms of the order Tricladida living in marine, freshwater, or terrestrial environments.

plural of planarian

flat, flattened. Resembling a plane, or otherwise planar.

(entomology, geography) flat or flattened area.