transition altitude (English, noun)
expansion: transition altitude (usually uncountable, plural transition altitudes)
Senses:
topics: aeronautics
aerospace
aviation
business
engineering
natural-sciences
physical-sciences
glosses: The altitude (which varies by country) above which an aircraft's barometric altimeters are set as if the sea-level atmospheric pressure were equal to 1013.25 hectopascals (regardless of the actual atmospheric conditions) and altitudes are reported as flight levels.
tags: uncountable
usually
Forms:
form: transition altitudes
tags: plural