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soap bubble

a bubble of soapsuds.
something that lacks substance or permanence.
Origin of soap bubble
1805-15 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for soap bubble
  • Create a fun soap bubble experiment in your kitchen.
  • When a sampling pump is connected to the bubble generator, the vacuum created draws a soap bubble through the device.
  • Examine piping for leakage using soap bubble solution, or by test gage monitoring.
  • Compressed air flow rates were measured immediately before and after each experiment using a soap bubble flowmeter.
  • Examine all joints and connections with a soap bubble solution or equivalent method.
  • soap bubble screening involves spraying a soap solution on small, accessible components such as threaded connections.
  • Helium was utilized as the carrier gas and its flow rate was measured using a soap bubble flow meter at the head of the column.
  • Conduct a soap bubble test with an approved solution.
British Dictionary definitions for soap bubble

soap bubble

a bubble formed from soapy water
something that is ephemeral but attractive
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
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