An altimeter that uses a narrow radio or radar beam directed at the ground

plural of alto horn

Synonym of althorn

Someone who plays the alto horn.

(computing) A feature of certain computer keyboards where a pressed key remains depressed and actuated until it is pressed again.

plural of altar bell

A city in Santa Clara County, California, United States.

(aviation) A measure of altitude inferred by the measurement of ambient pressure in differential with a reference pressure at a known altitude.

(aviation) A device which measures the altitude by performing measurement of the ambient pressure and comparing it against a reference pressure at a known altitude, to give a pressure altitude.

A man who values personal realisation over more conventional measures of success.