Physical Chemistry. exhibiting an increase in volume on being changed in shape, owing to a wider spacing between particles.
Petrology. (of rock) exhibiting an increase in volume owing to rearrangement and recrystallization of constituent grains.
Origin of dilatant
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
a phenomenon caused by the nature of the stacking or fitting together of particles or granules in a heterogeneous system, such as the solidification of certain sols under pressure, and the thixotropy of certain gels
tending to dilate; dilating
physics of, concerned with, or exhibiting dilatancy
something, such as a catheter, that causes dilation
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