treatment

noun

1
care provided to improve a situation (especially medical procedures or applications that are intended to relieve illness or injury)
2
the management of someone or something
the handling of prisoners
the treatment of water sewage
3
a manner of dealing with something artistically
his treatment of space borrows from Italian architecture
4
an extended communication (often interactive) dealing with some particular topic
the book contains an excellent discussion of modal logic
his treatment of the race question is badly biased

Also useful for “treatment”:Unscrambler— Rearrange the letters in “treatment”