1. TETS - Noun
2. TETS - Proper noun
(medicine) Initialism of transcutaneous energy transmission system: an experimental subcutaneous device for generating current in heart patients.
(organic chemistry) Abbreviation of tetramethylenedisulfotetramine.
TETS
(UK, railway) Initialism of Trains Entering Terminal Stations: a failsafe device for stopping trains that are entering a station at the end of a railway line.
Tets (plural Tets)
(UK, informal) A bottle or serving of Tetley's beer.