Function: noun
Date: 1920
: the altitude at which under standard air conditions a particular airplane can no longer rise at a rate greater than a small designated rate (as 100 feet per minute)
Function: noun
Date: 1920
: the altitude at which under standard air conditions a particular airplane can no longer rise at a rate greater than a small designated rate (as 100 feet per minute)
Merriam Webster Collegiate English Dictionary. Merriam Webster - Энциклопедический словарь английского языка. 2012