Real Dictionary

treatment
something that follows from an action, dispute, situation, etc; result; consequence [...]
the act of responding; reply or reaction [...]
the application of medicines, surgery, psychotherapy, etc, to a patient or to a disease or symptom [...]
uncountable noun: Your treatment of someone is the way you behave towards them or deal with them.
variable noun: Treatment is medical attention given to a sick or injured person or animal.
variable noun: Treatment of something involves putting a particular substance onto or into it, in order to clean it, to protect it, or to give it special properties.