There are multiple definitions:

1. benzilate(English)

   • QNB

2. borderzone(English)

3. breathing zone(English)

   • BeS, BZ, CBD, DWA, LP
   • Environment, Pollution and health, Occupational disease
   • https://doi.org…732201750169697

4. benzodiazepine(English)

   • widely prescribed for the treatment of insomnia
   • Sleep medicine, Therapeutic approaches, Addiction and health
   • https://doi.org…19.2001.00828.x