al·​tim·​e·​ter | \ al-ˈti-mə-tər How to pronounce altimeter (audio) , ˈal-tə-ˌmē-tər How to pronounce altimeter (audio) \

Definition of altimeter

: an instrument for measuring altitude especially : an aneroid barometer designed to register changes in atmospheric pressure accompanying changes in altitude

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Other Words from altimeter

altimetry \ al-​ˈti-​mə-​trē How to pronounce altimetry (audio) \ noun

Examples of altimeter in a Sentence

Recent Examples on the Web

The altimeter has a range of -2,300 feet to 32,800 feet, and users can store up to 30 altitude measurements that are time and date stamped. Dallas News, "Casio Pro Trek watch is tough and feature-packed," 8 Aug. 2019 And while the ad didn’t include a compass, camera, barometer, altimeter, accelerometer, or GPS device, these too have vanished into the iPhone and other smartphones. Andrew Mcafee, WIRED, "How the iPhone Helped Save the Planet," 29 June 2019 Instinct comes with a 3-axis compass, barometric altimeter, and multiple global navigation satellite systems (GPS, GLONASS and Galileo). Dani Deahl, The Verge, "The Garmin Instinct is a rugged smartwatch for outdoor activities," 11 Oct. 2018 Like its predecessor, ICESat-2 is a laser altimeter that can very precisely map surface elevations. Scott K. Johnson, Ars Technica, "ICESat-2 successfully starts lasering Earth, telling us about it," 5 Oct. 2018 Instead of reacting to the weather, prepare for it with this waterproof watch that features a storm alarm, weather-predicting barometer, thermometer, altimeter, and compass. Janna Irons, Outside Online, "Essential Gear for Road-Trip Season," 23 Apr. 2018 The two-year survey used small Twin Otter planes, sensors detecting gravity and magnetism, as well as radar and laser altimeter tools. David Grossman, Popular Mechanics, "Three Giant Antarctic Valleys Found Hidden Under Ice," 25 May 2018 The estate originally encompassed about 24 acres, but was later expanded to its current size by Paul Kollsman, inventor of the altimeter, during his decades of ownership. Roger Vincent,, "Paul Allen puts a $150-million price on storied acreage in Beverly Crest," 11 July 2018 While the radar altimeter displays the height of the landing gear above the ground, things are happening too fast to use it in the flare. John Cox, USA TODAY, "Ask the Captain: It takes skill to make a smooth landing," 20 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'altimeter.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of altimeter

1904, in the meaning defined above

History and Etymology for altimeter

Latin altus + English -meter

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Statistics for altimeter

Last Updated

17 Aug 2019

Look-up Popularity

Time Traveler for altimeter

The first known use of altimeter was in 1904

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More Definitions for altimeter



English Language Learners Definition of altimeter

: an instrument used for measuring the altitude of something (such as an airplane or a mountain)

More from Merriam-Webster on altimeter

Rhyming Dictionary: Words that rhyme with altimeter Encyclopedia article about altimeter

Comments on altimeter

What made you want to look up altimeter? Please tell us where you read or heard it (including the quote, if possible).


not constant or steady

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