dry cleaner vs dry cleaning

dry cleaner

noun
  • A person whose business is the dry cleaning of clothes and other fabrics. 

  • A business establishment that engages in the dry cleaning of clothes and other fabrics. 

dry cleaning

noun
  • Clothing or other items that will undergo, or have undergone, this kind of cleaning. 

  • The process of cleaning clothes and other fabrics without using water, instead using solvents and specialized equipment. 

How often have the words dry cleaner and dry cleaning occurred in a corpus of books? (source: Google Ngram Viewer )