ATR

Attenuated Total Reflectance (Academic & Science » Physics)

Attenuated Total Reflectance (Academic & Science » Electronics)

Automatic Target Recognition (Governmental » Military)

**** Atrophy (Medical » Physiology)

*** Average True Range (Governmental » Military)

** Advanced Telecommunications Research (Computing » Telecom)

** Answer To Reset (Computing » Assembly)

** Avions De Transport Regional (Governmental » Transportation)

** Automatic Traffic Recorder (Governmental » Transportation)

* Aptar Group, Inc. (Business » NYSE Symbols)

* Advanced Tongue Root (Medical » Physiology)

* African Traditional Religion (Community » Religion)

* Above The Rest (Governmental » NASA)

* Automatic Tampon Removal (Medical » Physiology)

* Automatic Tampon Remover (Business » Positions)

* Automatic Tampon Remover (Medical » Physiology)

* Air Transport Rack (Governmental » Military)

* Anti Tank Rifle (Governmental » Military)

* Avion de Transport Regional (Business » Firms)

* Art Therapist Registered (Business » Positions)

* Advanced Tactical Radar (Governmental » Military)

* Achilles tendon reflex (Medical » Physiology)

* Alaska Trauma Registry (Medical)

* Alaska Trauma Registry (Governmental » Military)

* Attack The Radical (Governmental » Military)

* Atar, Mauritania (Regional » Airport Codes)