| Also called capillary action, capillary attraction. Physics. a manifestation of surface tension by which the portion of the surface of a liquid coming in contact with a solid is elevated or depressed, depending on the adhesive or cohesive properties of the liquid. |
capillarity cap·il·lar·i·ty (kāp'ə-lār'ĭ-tē)
n.
The interaction between contacting surfaces of a liquid and a solid that distorts the liquid surface from a planar shape.