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Definition of altimeter
altimeter
/ælˈtɪm.ə.tɚ/
al · tim · e · ter
Plural:altimeters
•Adjective:altimetric
altimeter Lexical Profile
CEFR
C1
Grade
8
Tier
2
Usage
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• noun
1
An instrument used to measure the altitude of an object above a fixed reference level, such as sea level, widely used in aviation, aerospace, and mountaineering.
Example
"Before descending through the dense clouds, the pilot carefully checked the altimeter to ensure the aircraft was at a safe cruising altitude."
• Rhymes for altimeter
Word Origin & Etymology
Coined in the late 19th century from the Latin word 'altus' (meaning 'high') combined with the suffix '-meter' (from Greek 'metron', meaning 'measure').
Cite this Entry
Wordmom. (2026). Definition of Altimeter. In Wordmom Dictionary. Retrieved Oct 12, 2026, from https://wordmom.com/dictionary/altimeter