Question

What do you mean by capillary?

Answer 1

any of the fine branching blood vessels that form a network between the arterioles and venules is known as capillary

Answer 2

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Adhesion of water to the walls of a vessel will cause an upward force on the liquid at the edges and result in a meniscus which turns upward. The surface tension acts to hold the surface intact. Capillary action occurs when the adhesion to the walls is stronger than the cohesive forces between the liquid molecules