There are multiple definitions:

1. decayed, extracted, or filled tooth(English)

   • Dentistry

2. differentially expressed protein(English)

   • such as lactoferrin
   • Clinical chemistry
   • https://doi.org…med.2021.663807

3. S,S,S-tributyl phosphorotrithioate(English)

   • aka tribufos
   • CDC, DEF, ITN, IRS, PBO, s.l., WHO
   • Malaria
   • https://doi.org…3071-017-2336-9
   • https://oehha.c…te-tribufos-def

4. decontamination efficacy factor(English)

   • refers to human skin decontamination
   • CEES, CWA, CWC, DDGel, DEF, DIMP, MPEG2, OP, RSDL, SC, SM, WMD
   • Dermatology, Toxicology, Military medicine
   • https://doi.org…let.2018.04.015