Look up Treatment in Wiktionary, the free dictionary.

Treatment is most often used to mean a process of modifying or altering something, and depending on context may be used in an unqualified form to refer to any of the following:

• A type of therapy used to remedy a health problem
• Experimental treatment, manipulation of variables by the experimenter
• Water treatment
• Sewage treatment
• Surface treatment or surface finishing, processes used to improve the surface of a manufactured item
• National treatment, economic term for the principle that foreigners and domestic nationals are treated equally

A film treatment is prose telling of a story intended to be turned into a screenplay.

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