treatment-n; 3 Senses

Sense Number 1: administering of medical care for injury or disease

Commentary: TREATMENT[+activity][+procedure][+therapeutic][+medical]
NOTE: a narrow, medical usage of Sense 2
NOTE: implies an agent administering medical care to a recipient/patient

His medical insurance won't cover that type of treatment.
The patient is scheduled to have three treatments of radiation.
It's an exciting new treatment for pancreatic cancer.

PropBank: treatment.02
WordNet 3.0 Sense Numbers: 1

Sense Number 2: manner of handling, managing someone or something

Commentary: TREATMENT[+activity][+conduct][+managing][+manner]
NOTE: implies an actor/agent handling a recipient/patient

They are concerned about the treatment of the prisoners.
Mary gave John the silent treatment at dinner last night.
The film star always received special treatment at the restaurant.
The harbor is much cleaner since the inception of sewage treatment there.
The treatment of hazardous wastes is usually expensive.
These hardy shrubs don't require any special treatment.

PropBank: treatment.03
WordNet 3.0 Sense Numbers: 2

Sense Number 3: a critique or presentation of something, e.g.,discussion

Commentary: TREATMENT[+activity][+communication][+critique][+verbal/+artistic]
NOTE: implies an intention to communicate an idea

The candidate's treatment of foreign policy issues struck the audience as naive.
The film's treatment of this war-torn village was quite moving.
The middle portion of the book is an extensive treatment of Napoleon's early military campaigns.
This painter's treatment of light and shadow is reminiscent of the Dutch Masters.

PropBank: treatment.01
WordNet 3.0 Sense Numbers: 3, 4