What is "drycleaning"

Usage examples of "drycleaning".

He went upstairs, through drycleaning, through accounting, and into his office.

Even Celeste's yattering failed to rile him, perhaps because she talked mostly about drycleaning instead of her cats and rice pudding and the world's tallest woman.

I called the Pawnshop Detail and gave them a description of the silverware, and I got a list of Kafesjian's drycleaning shops.