al‧ti‧me‧ter /ˈæltɪˌmiːtə $ ælˈtɪmətər/
noun [countable][
Date: 1900-2000;
Language: Latin;
Origin: altus ( ⇒ altitude) + English -meter]
an instrument in an aircraft that tells you how high you are
[TahlilGaran] Dictionary of Contemporary English ▲