What is capilliarity?

Answer 1

The tendency of a liquid in a capillary tube or absorbent material to rise or fall as a result of surface tension.

Answer 2

Capillarity is the phenomenon where liquids are drawn up into narrow tubes or pores due to the combined effects of adhesion, cohesion, and surface tension. This process is driven by the relative attraction between the liquid and the material of the tube or pore, resulting in the liquid rising or falling to reach equilibrium. It plays a role in various natural processes such as water movement in plants and soil.