You searched for: “altimeters”
altimeter (s) (noun), altimeters (pl)
An instrument used to determine elevation or height: "Altimeters are used in aircraft in order to know what the atmospheric pressure changes are when flying up into the sky."
This entry is located in the following units: alto-, alt-, alti- (page 1) meter-, metro-, metr-, -metrical, -metrically, -metron, -metric, -metrist, -meter, -meters, -metry, -metre (page 3)