An ancient Egyptian symbol of the god Osiris, in form a small pillar with a number of flat sections towards the top.

(chemistry) Initialism of tetraethyltin. / (computing) Initialism of transparency-enhancing tool. / (medicine) Initialism of thymic epithelial tumor. / (physics) Initialism of targeted energy transfer.

plural of tet

plural of TET

(medicine) Initialism of transcutaneous energy transmission system: an experimental subcutaneous device for generating current in heart patients.

(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.

(UK, informal) A bottle or serving of Tetley's beer.

(informal, organic chemistry) Clipping of carbon tetrachloride.

(medicine) An acute episode of hypoxia in an individual with tetralogy of Fallot.

(voodoo) The loa with whom a Vodouisant has a particular connection, and with whom they specially identify.