Agency for International Development 
Altered Item Drawing 
Artificial insemination donor 
Abbreviated Item Description 
Access Identifier 
Acquisition Item Description 
acute infectious disease 
Ada Information Description 
Aerospace Information Division 
air inlet damper 
Airport Information Desk 
Analog Input Differential 
Application IDentifier 
argon ionization detector 
artificial insemination by donor 
Audit Item Disposition 
autoimmune disease 
automated identification device 
Automatic Identification 
Avionics Integrated Development 
Access Point Identifier 
accident identification display 
Accident, Incident, Deficiencies 
Acoustic Inspection Device 
acquired immunodeficiency disease 
activation induced deaminase 
activation-induced cytidine deaminase 
activation-induced cytosine deaminase 
activation-induced death 
Active Integral Defense