There are multiple definitions:

1. Burkitt's lymphoma(English)

2. blue light [emitting diode](English)

   • refers to temperature increase in in vitro human tooth pulp by different light sources in the dental whitening process
   • GL, HL
   • Dentistry, Laser technique, Materials science
   • https://doi.org…0103-008-0546-2

3. betalactam(English)

   • AX, bla, CX, DPT, IgE, IHR, MDM, PPL, PV, RAST, ST, TCD
   • Microbiology, Allergy
   • https://doi.org…601-020-00368-1

4. bone loss(English)

   • refers to implant systems supporting single-unit crowns
   • mBL, PC, PCP, PH, PHP
   • Skeleton and bone (formation), Dentistry
   • https://doi.org…01.2010.01945.x

5. basal lung(English)

   • AL, COPD, GOLD, MRI, VDP
   • Anatomy, Pulmonology, Medical imaging
   • https://doi.org…55.2015.1123682

6. border length(English)

   • refers to endocardial and epicardial border length delineation with contrast during transthoracic echocardiography
   • EnBL, LVO
   • Cardiology, Echography/ultrasound
   • https://doi.org…75.2011.01420.x