单词	ignition
释义	ignition noun ig·​ni·​tion ig-ˈni-shən  1 a : the device that is used to ignite the fuel mixture in a gasoline engine put the key in the ignition b : the process or means (such as an electric spark) of igniting a fuel mixture 2 : the act or action of igniting: such as a : the starting of a fire b : the heating of a plasma to a temperature high enough to sustain nuclear fusion Example Sentences There's a problem with the car's ignition. Recent Examples on the Web This fire, burning in Tahoe National Forest and Placer and El Dorado Counties, has grown dramatically since its ignition. Gerry Díaz, San Francisco Chronicle, 9 Sep. 2022 Along with a folding lid to provide a 3-sided wind screen, the 12-pound stove offers matchless ignition to get the burners going with the twist of a knob. Marc Saltzman, USA TODAY, 3 Sep. 2022 Where the earlier works built to stunning crescendos of violence, Athena is a live grenade, beginning in full ignition mode and dialing up its intensity throughout with virtuoso technique. David Rooney, The Hollywood Reporter, 2 Sep. 2022 In the last few seconds, hydrogen will burn off, the four RS-25 engines will start, resulting in booster ignition and liftoff at T minus zero. Ashley Strickland, CNN, 2 Sep. 2022 The issue that halted the launch Monday was a liquid hydrogen line that did not adequately chill one of the rocket’s four core-stage engines, part of the preparations needed before ignition. Kenneth Chang, BostonGlobe.com, 30 Aug. 2022 If the rocket scrubs prior to engine ignition, the next possible date for an attempt is September 2, with a launch time in the middle of the day, followed by daily opportunities through September 5. Eric Berger, Ars Technica, 29 Aug. 2022 Until November 1, 2021, vehicles produced by Hyundai that used physical key ignition systems did not include immobilizers. Jack Fitzgerald, Car and Driver, 27 Aug. 2022 The McKinney Fire had scorched more than 50,000 acres just three days after ignition on July 29. Grant Stringer, The Christian Science Monitor, 26 Aug. 2022 See More Word History First Known Use 1612, in the meaning defined at sense 2 Kids Definition ignition noun ig·​ni·​tion ig-ˈni-shən  1 : the act of causing something to start burning 2 : the process or means (as an electric spark) of causing the fuel in an engine to burn so that the engine begins working 3 : a device that is used to start a motor vehicle Put the key in the ignition.
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