1) Airborne imaging spectrometer 2) Arboreal animals 3) Exclamations of grief 4) Florida tribe 5) Greenish sloths 6) Large sloths 7) Plank for Pierre 8) SA sloth 9) Sloths 10) Some computer game opponents 11) Some sloths 12) South American mammals 13) South American sloths 14) Start of some picture books 1) Sloths 2) Threetoedsloths 
• (pl. ) of Ai
Androgen Insensitivity Syndrome. There are two forms known as Complete AIS (CAIS) and Partial AIS (PAIS).
abbreviation: Aeronautical Information Services
American Institute of Stress
System where vessel information (location, course, speed, etc.) is broadcast by VHF radio, for use by other vessels in navigation and collision avoidance. See also article - How is AIS works
AWACS Interface SystemAutomated Identification System [NCIC] + Automated Information Systems
Automated Information SystemAviation acronym: Aeronautical Information Services
Aircraft Instrumentation System
Allied Information Service. (PWD/SHAEF)
Adenocarcinoma in situ
Aeronautical Information Service
Air Insulated Switchgear
Automatic Idle Speed
acronym: airborne imaging spectrometer
Alarm indication signal. In a T1 transmission, an all-ones signal transmitted in lieu of the normal signal to maintain transmission continuity and to indicate to the receiving terminal that there is a transmission fault that is located either at, or upstream from, the transmitting terminal.