ac·​cel·​er·​om·​e·​ter | \ ik-ˌse-lə-ˈrä-mə-tər, ak-\

Definition of accelerometer

: an instrument for measuring acceleration or for detecting and measuring vibrations

Examples of accelerometer in a Sentence

Recent Examples on the Web

The Apple watch also has accelerometers for built in fall detection. James Lynch, Popular Mechanics, "Buyer's Guide: How To Decide Between an Apple Watch and a Fitbit," 20 Dec. 2018 For this study, the researchers had babies wear accelerometers to detect motion and also used questionnaires for the parents. Sumathi Reddy, WSJ, "Babies’ Sleep Linked to Lower Obesity Risks Years Later," 15 Oct. 2018 In addition to the display, Apple optimized other parts of the Watch's hardware, including the processor, accelerometer, gyroscope, and GPS. Valentina Palladino, Ars Technica, "Apple Watch Series 4 review: A bigger, better watchOS experience," 26 Sep. 2018 But according to Apple, the watch has an accelerometer and gyroscope, which together measure impact acceleration and wrist trajectory to detect if the wearer has taken a hard fall. Amy Marturana, SELF, "I Tried the Apple Watch Series 4 for a Week—Here’s What I Loved About It," 19 Sep. 2018 An app called mPower, built by Sage Bionetworks, a non-profit research organisation, studies Parkinson’s disease by getting iPhone users to perform tasks and measuring the tremor in their hands using the phone’s internal accelerometer. The Economist, "Apple and Amazon’s moves in health signal a coming transformation," 3 Feb. 2018 Without a physical product to work with, the developers had to rely on Apple Watch emulators and haven't had access to the accelerometer and other hardware features of the watch. John Wenz, Popular Mechanics, "Are You Ready to Control a Tesla With Your Apple Watch?," 4 Feb. 2015 Running on Android, the Google Nexus is designed to be game-friendly; the device boasts features like a gyroscope and accelerometer to help bring your gaming experience to life. The Good Housekeeping Institute, Good Housekeeping, "Google Nexus 7 Tablet," 3 Jan. 2014 Force sensors and accelerometers keep track of the leg's position relative to the environment and the user. Erik Sofge, Popular Mechanics, "Smart Bionic Limbs are Reengineering the Human," 28 May 2012

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'accelerometer.' 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 accelerometer

1875, in the meaning defined above

History and Etymology for accelerometer

borrowed from French accéléromètre, from accélérer "to accelerate" (borrowed from Latin accelerāre) + -o- -o- + -mètre -meter

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Last Updated

14 Jan 2019

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The first known use of accelerometer was in 1875

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More Definitions for accelerometer


ac·​cel·​er·​om·​e·​ter | \ ik-ˌsel-ə-ˈräm-ət-ər, ak- \

Medical Definition of accelerometer

: an instrument for measuring acceleration or for detecting and measuring vibrations

More from Merriam-Webster on accelerometer

Nglish: Translation of accelerometer for Spanish Speakers Encyclopedia article about accelerometer

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