a sensitive aneroid barometer that is graduated and calibrated, used chiefly in aircraft for finding distance above sea level, terrain, or some other reference point by a comparison of air pressures.
any device used for the same purpose that operates by some other means, as by radio waves.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use altimeter in a sentence
They include a three-axis accelerometer, an optical heart rate monitor, altimeter, GPS, and relative SpO2 sensor.Fitbit Charge 4 review: A smart, streamlined fitness tracker watch | Billy Cadden | June 25, 2021 | Popular-Science
It has a three-axis compass, a barometric altimeter, and multiple GPS connections built right in.Best Amazon Prime deals on outdoor gear: Find top Amazon Prime Day 2021 discounts | Billy Cadden | June 22, 2021 | Popular-Science
On top of that, it also comes with a sophisticated array of sensors, including an optical heart rate monitor, built-in GPS, 3-axis accelerometer, altimeter, and more-all working to provide you with the most accurate health data possible.10 unique deals that you’ll find here with better than Amazon pricing | Quinn Gawronski | June 21, 2021 | Popular-Science
If you do jump from Series 5 to Series 6, you’ll get faster charging, blood oxygen monitoring, the U1 chip, and an always-on altimeter, which I have never actively used.Apple Watch Series 6 review: Still the best smartwatch for iPhone users | Billy Cadden | June 15, 2021 | Popular-Science
The helicopter has its own on-board computer, heater, guidance system, cameras and laser altimeter.How NASA's Mars Helicopter Flight Opens the Door to More Ambitious Missions | Jeffrey Kluger | April 19, 2021 | Time
Some trackers come with a built in altimeter to keep you honest on the number of stairs you take each day.
A tracker with an altimeter will give you a far more accurate picture of calories-burned.
The best fitness trackers have a built-in altimeter, which measures elevation.
And always the quivering needle crept up to new marks of speed, while their altimeter marked off the passing levels.Astounding Stories, May, 1931 | Various
He glanced up at the altimeter needle, which was sliding by the 24,000-foot mark.Warning from the Stars | Ron Cocking
When he checked the altimeter again, it registered just over 30,000 feet.Warning from the Stars | Ron Cocking
The altimeter showed slightly over forty-two miles when stage two detached itself.Tight Squeeze | Dean Charles Ing
altimeter, al-tim′e-tėr, n. an instrument for measuring heights.
British Dictionary definitions for altimeter
an instrument that indicates height above sea level, esp one based on an aneroid barometer and fitted to an aircraft
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Scientific definitions for altimeter
An instrument that measures and indicates the height above sea level at which an object, such as an airplane, is located.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.