Language: en
Meaning: (motor racing)Holding the lastqualifying positionwith qualification still in progress, and thus liable to lose that position.Smith wason the bubblebut lost out when Jones was faster by a tenth of a second.; (sports)Having qualification for an event depend on the upcoming performances of other competitors; hence, at risk of beingeliminated, andreversely, being close to qualification;on the verge.The Knights had beenon the bubblefor the tournament, but played their way in by winning their last five games.2006, Dan Harrington, Bill Robertie,Harrington on Hold 'Em::Most players play pretty looseon the bubble, much looser than they theoretically should, and even if I saw an opponent sitting out a few hands, it's more likely that he just hit a run of low cards than that he turned into a locksmith at this stage.2009, Dick Couch,The Warrior Elite: The Forging of SEAL Class, page228:Lewis and Marc Luttrell areon the bubblebecause they have yet to make the timed run in Third Phase, but they make this one.; (idiomatic)Uncertain of success.The new bond issue now appears to beon the bubble, with support eroding.; Used other than figuratively or idiomatically:seeon,bubble.2004, David D. Moon,Carbon Dating, Cold Fusion, and a Curve Ball, page109:Among other aspects of bubble measurement, the researchers were interested in measuring the size of the bubble with a laser scattering technique. A laser is shoneon the bubble, which scatters the light.
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