adre - Air
- adrenal
- adrenal cortex
- adrenal cortical hormone
- adrenal cortical-medullary rhythm
- adrenalin
- adrenaline
- adrenergic
- adrenocortical function
- adrenocorticotrop(h)ic hormone
- adrenosympathetic activity
- adrenosympathetic reaction
- adrenosympathetic system
- ADS
- adult
- adult subject
- advanced engineering
- advanced flightweight protective helmet for aircrew
- advanced training
- adventurous trend
- adverse effect (of emotion)
- adverse effecting emotion
- adverse emotion
- adverse reaction
- adversity
- Advisory Group for Aerospace Research and Development
- adynamia
- AEP
- aeral vehicle
- aerial conduction of sound waves
- aerial conductive hearing loop
- aerial locomotion
- aerial maneuver
- aerial movement of patients
- aerial orientation
- aerial oxygen
- aerial port
- aerial search pattern
- aerial stunt
- aerial stunt artist
- aerial survey
