tooth powder

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noun

a dentifrice in the form of a powder.

Origin of tooth powder

First recorded in 1535–45
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British Dictionary definitions for tooth powder

tooth powder

noun

a powder used for cleaning the teeth, applied with a toothbrush

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