The American Heritage® Dictionary of the English Language, 4th Edition
n. The interaction between contacting surfaces of a liquid and a solid that distorts the liquid surface from a planar shape. Also called capillary action.
n. The interaction between the surfaces of a solid and liquid in contact that distorts the normal geometry of the liquid surface; especially the rise or fall of a liquid in a fine tube.
the GNU version of the Collaborative International Dictionary of English
n. The quality or condition of being capillary.
n. The peculiar action by which the surface of a liquid, where it is in contact with a solid (as in a capillary tube), is elevated or depressed; capillary attraction.
The Century Dictionary and Cyclopedia
n. The state or condition of being capillary; capillary attraction.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. a phenomenon associated with surface tension and resulting in the elevation or depression of liquids in capillaries
Word Usage
"As already explained on page 10, a process called capillarity enables moisture to rise in the soil as plants need it."