The measurement or construction of a plane surface.

plural of planoblast

(zoology) Any free-swimming gonophore of a hydroid; a hydroid medusa.

Plane or flat on one side, and conical on the other.

plural of planorbis

(zoology) Any of the freshwater air-breathing mollusks belonging to Planorbis and allied genera, having shells of a discoidal form.

present participle of planogram

simple past tense and past participle of planogram

plural of planorbid

(zoology) Any freshwater snail in the family Planorbidae.