1 instantaneity | Definition of instantaneity

instantaneous

adjective
in·​stan·​ta·​neous | \ ˌin(t)-stən-ˈtā-nē-əs How to pronounce instantaneous (audio) , -nyəs\

Definition of instantaneous

1 : done, occurring, or acting without any perceptible duration of time death was instantaneous
2 : done without any delay being purposely introduced took instantaneous corrective action
3 : occurring or present at a particular instant instantaneous velocity

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Other Words from instantaneous

instantaneity \ ˌin-​ˌstan-​tə-​ˈnē-​ə-​tē How to pronounce instantaneity (audio) , ˌin(t)-​stən-​tə-​ˈnē-​ \ noun
instantaneously \ ˌin(t)-​stən-​ˈtā-​nē-​əs-​lē How to pronounce instantaneously (audio) , -​nyəs-​lē \ adverb
instantaneousness noun

Examples of instantaneous in a Sentence

We got an almost instantaneous response from the company. the thunder following the flash of lightning was nearly instantaneous

Recent Examples on the Web

The three-month window hails from a time before instantaneous digital availability, and so in that regard Netflix's attempt to compromise at 30 days seems reasonable as the times change. Aric Jenkins, Fortune, "If Martin Scorsese Can’t End Netflix’s Battle With the Movie Chains, Who Can?," 29 Aug. 2019 Instruments that use this approach, known as precision dendrometers, allow scientists to do something entirely new: watch how trees change and respond to their environments on an instantaneous scale. M. R. O’connor, The New Yorker, "A Day in the Life of a Tree," 27 Aug. 2019 Each episode will pull back the curtain on the drama happening at the practice, while capturing the daily transformations and instantaneous patient makeovers. Dave Quinn, PEOPLE.com, "Real Housewives of Dallas Star Cary Deuber Announces New, Plastic Surgery-Focused Show," 17 July 2019 Tatis did not have to run terribly far, but the slow speed of the grounder and Markakis’ decent running speed up the line forced an instantaneous mid-air decision. San Diego Union-Tribune, "Padres notes: Tatis, Machado will keep taking chances; Mejia and the churve; new umpire," 14 July 2019 As Marsh notes, the timing was apt: Unlike Hitler Moves East, the conflict in question was ongoing and being relayed to the public via social media, 24-hour news coverage and other instantaneous sources of information. Meilan Solly, Smithsonian, "What David Levinthal’s Photos of Toys Reveal About American Myth and Memory," 3 July 2019 To make the instantaneous getaway, the capsule is outfitted with four large bolts that connect it to the launch abort system. Alex Stuckey, Houston Chronicle, "Here's how to watch NASA's test of Orion abort system live today," 1 July 2019 The launch time is instantaneous, meaning SpaceX will have just one opportunity to launch Wednesday, instead of having a launch window to work with. Chabeli Herrera, orlandosentinel.com, "SpaceX plans to launch 5,000 pounds of cargo to ISS tonight. But storms may push it to August," 24 July 2019 When, through the nighttime murk of the Amazon River, an electric eel locates a feeder fish, what happens next is instantaneous: A jolt of electricity surges through the fish’s nerves. New York Times, "The Rise of the Spice Girls Generation," 19 July 2019

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

1651, in the meaning defined at sense 1

History and Etymology for instantaneous

Medieval Latin instantaneus, from instant-, instans, noun

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More Definitions for instantaneous

instantaneous

adjective

English Language Learners Definition of instantaneous

: happening very quickly : happening in an instant

instantaneous

adjective
in·​stan·​ta·​neous | \ ˌin-stən-ˈtā-nē-əs How to pronounce instantaneous (audio) \

Kids Definition of instantaneous

: happening or done very quickly : happening in an instant an instantaneous reply

Other Words from instantaneous

instantaneously adverb

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