Esophageal smear is a medical term used to describe a procedure where the lining of the esophagus is scraped to collect a sample of cells for examination. There are several synonyms that can be used for this procedure, including esophageal brush biopsy, esophageal cytology, and esophageal cell collection. These synonyms are all used interchangeably to refer to the same procedure, where a small brush or sponge is inserted through a flexible tube into the esophagus to collect a sample of cellular material. The sample is then examined under a microscope to check for any abnormalities or signs of disease. These synonyms can be helpful in discussions with healthcare professionals to ensure clear communication and understanding.