There are multiple definitions:

1. atrial flutter(English)

   • also denoted as AFl
   • ABL, AF, IART, MAT, TOF, CHADS2, ECG, HS, LA, SPAF, AAD, AE, AFEQT, AT, BMI, CHA2DS2-VASc, CTI, DCCV, EAM, HR, PAE, PAF, PEE, PFA, PV, PVI
   • Cardiology, Electrophysiology, Pathology
   • https://doi.org…4022/jafib.2144
   • https://doi.org…NAHA.124.070333

2. arcuate fasciculus, left side(English)

   • there is a nonlinear relation between fractional anisotropy in the AFL and state AVH
   • AVH, FA
   • Psychiatry, Brain (dys)function, Medical imaging
   • https://doi.org…res.2014.12.041

3. ablative fractional laser(English)

   • can improve pigmentation, but the efficacy and potential side effects are still debatable
   • MASI, YAG
   • Laser technique, Dermatology
   • https://doi.org…103-024-03972-w