something that thickens.
an apparatus for the sedimentation and removal of solids suspended in various liquids.
Origin of thickener
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for thickener
Contemporary Examples of thickener
Just add methyl cellulose, a thickener that can withstand high temperatures.Harvard Students Play With Food
December 28, 2010
Historical Examples of thickener
It is also useful as a thickener, in a mechanical point of view.
It may also be used as a thickener in calico-printing and for fining beer.