It seems there might be a typographical error in your question, as "capiarity" does not correspond to a known term. If you meant "capilarity," it refers to the ability of a liquid to flow in narrow spaces without the assistance of external forces, typically observed in phenomena like water moving up a thin tube or through soil. This property is crucial in various natural and biological processes, including the movement of water in plants. If you meant something else, please clarify!