There are multiple definitions:

1. toxic epidermal necrolysis(English)

   • SJS
   • Dermatology

2. titanium elastic nail(English)

   • MEPI
   • Orthopedics, Surgery
   • https://doi.org…20.v10.i06.1888

3. threshold equalizing noise(English)

   • spectrally shaped so that, for normally hearing subjects, it would give equal masked thresholds for pure tone signals at all frequencies within the range 250-10,000 Hz
   • CF, IHC, PTC, DR
   • Signal analysis, Audiology
   • https://doi.org…005364000000131
   • https://doi.org…027.2013.840931