The term 'PET TREATER' can be broken down into two words: 'VET' and 'TREATER'. The word 'VET' is a 3 letter acronym for Veterinarian, which is a medical professional who specializes in the diagnosis and treatment of diseases and injuries in animals. The word 'TREATER' refers to someone who provides care and attention to pets, such as feeding, grooming, and exercising them. Together, the two words form the job description of a Pet TREATER, which is someone who provides both medical and non-medical care to pets.