There are multiple definitions:

1. diiodotyrosine(English)

   • MIT, T3, T4, TSH, DEHAL1, DUOX, H2O2, ICCIDD, NIS, PDS, Tg, TPO, TRH
   • Thyroid and parathyroid
   • https://doi.org…687-9856-2014-8

2. dissemination in time(English)

   • DIS

3. Dublin Institute of Technology(English)

   • IIT, MIT
   • Organizations (research)