plano-1

1.
a combining form meaning “flat,” “plane,” used in the formation of compound words:
planography.
Also, plani-; especially before a vowel, plan-.
Origin
combining form representing Latin plānus level, plānum level ground

plano-2

1.
a combining form meaning “moving,” “capable of movement,” used in the formation of compound words:
planogamete.
Origin
combining form representing Greek plános wandering, roaming. See planet
British Dictionary definitions for plano-

plano-

combining form
1.
indicating flatness or planeness: plano-concave
Word Origin
from Latin plānus flat, level
Word Origin and History for plano-

alternative form of Latin plani- "flat, level," but also used in sciences as a comb. form of Greek planos "wandering" (see planet).

plano- in Medicine

plano- or plani- or plan-
pref.
Flat: planocellular.