Meanings

automatic turnstile (ticket gate)

elevation fluctuation vector

behavioral ecology

seasonal affective disorder

apparent movement

automatic teller machine

club activities

Rastafari movement

liberation movement

sphere of action

gay liberation movement

fire fighting

Acala (Wisdom King)

(minimum) system requirements

active optics (telescope)

recommended system requirements (software)

semiautomatic (gun)

differential phase-shift keying

orbital motion

hyperactivity (of a child)