Which of the following terms is no longer used in modern plumbing terminology for a sanitary fitting?

The term that is no longer commonly used in modern plumbing terminology for a sanitary fitting is "Sanitary Tee." While this term was traditionally utilized in plumbing to describe a fitting that allows for the connection of a branch drain to a vertical stack, the evolution of plumbing standards and practices has led to the adoption of more precise language. In contemporary plumbing, professionals refer to this fitting simply as a "tee" or "t-fitting," eliminating the need for the "sanitary" designation because it is understood that all tees used in drainage systems are intended for sanitary applications.

The importance of using updated terminology is crucial for efficient communication among plumbing professionals and to ensure that plumbing systems adhere to the latest codes and standards. Understanding this evolution helps plumbers stay current with industry practices and provides clarity in design and installation processes.