dilatancy

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dilatancy

[dī′lāt·ən·sē]
(chemistry)
The property of a viscous suspension which sets solid under the influence of pressure.
(geology)
Expansion of deformed masses of granular material, such as sand, due to rearrangement of the component grains.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

dilatancy

The expansion of cohesionless soils when subject to shearing deformation.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.