What does REFL stand for?

Reference Line (AAG)

Reflect (SAUS)

Reflectance - or Reflector (AAG)

Reflection - or Reflector (IAA)

Reflective (SAUS)

Reflex

Reflexive

Specimen Lost by Reference Laboratory (DAVI)

Reflexive - Linguistics (IEL)

Retroreflecting Material - Nautical term (HRNC)