Go to 'thermo-' entry Go to 'dino-' entry Go to 'chondro-' entry Go to 'aero-' entry Go to '-logy' entry Go to 'thaumato-' entry Go to 'nano-' entry Go to '-sophy' entry Go to 'bucco-' entry Go to '-ism' entry Go to '-lysis' entry Go to 'galacto-' entry Go to '-anthropy' entry Go to 'pneumo-' entry Go to '-ploitation' entry Go to '-lithic' entry Go to '-sepalous' entry Go to 'onco-' entry Go to '-parous' entry Go to 'dermato-' entry Go to 'multi-' entry Go to 'dodeca-' entry Go to '-zoon' entry Go to 'vermi-' entry Go to 'crystallo-' entry Go to 'biblio-' entry Go to 'eco-' entry Go to 'juxta-' entry Go to 'facio-' entry
Affixes: the building blocks of English
Affixes: the building blocks of English

plan(o)- Also plani-.

Level or flat.

[Latin planus, flat.]

A lens that is planoconcave has one surface plane and the opposite one concave, while a planoconvex one has the curved face convex; the adjective planographic refers to a printing process in which the printing surface is flat, as in lithography; a planisphere is a map formed by the projection of a sphere or part of a sphere on a plane; a planometer is a flat plate used in metalwork as a standard gauge for plane surfaces, while a planimeter is an instrument for mechanically measuring the area of a plane figure; a planarian is a type of flatworm; in medicine, planigraphy is the process of obtaining a visual representation of a plane section through living tissue.

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