altimeter

n instrument used esp in aircraft for showing the height above sea-level （尤指用於飞行器的）高度表; 测高计.

Alsatian, also, also-ran, altar, altar-piece, alter, alter ego, alterable, alteration, altercation, alternate, alternate angles, alternately, alternating current, alternation, alternative, alternatively, alternator, although, although (US also altho), altitude, alto, altogether, altruism, altruist, altruistic, altruistically, alum, aluminium, aluminum, alumna, alumnus, alveolar, always, am, amalgam, amalgamate, amalgamation, amanuensis, amass,