絶ぜっ対たい上じょう昇しょう限げん度ど

noun

absolute ceiling

Aviation term: the maximum altitude at which an aircraft can maintain level flight under standard conditions.

• この機き体たいの絶ぜっ対たい上じょう昇しょう限げん度どは約やく1いち万まんメートルです。

  The absolute ceiling of this aircraft is about 10,000 meters.