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amount of substance

British  

noun

  1. a measure of the number of entities (atoms, molecules, ions, electrons, etc) present in a substance, expressed in moles

"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

Example Sentences

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The amount of substance produced by this method will remain limited to thin film technology applications for some time to come.

From Science Daily

“There is a vast amount of substance in the relationship,” he added.

From New York Times

The tool has the ability to dramatically increase the amount of substance you put inside of it.

From Salon

“The amount of substance abuse is higher, neglect is higher, abuse is higher,” Cutchin explained.

From Washington Times

There seems to be an impressive amount of substance behind Mayfield’s swagger.

From Washington Post