resembling a cobweb or spiderweb, such as the arachnoid membrane. arachnoidal, adj. adjective. (1) Spider-like in appearance. (2) Cobweb-like; covered with or consisting of entangled soft fibres or hair-like material.
Swollen feet can cause much discomfort. People often wonder that what causes swollen feet and cause of swollen feet. Basically a swollen feet or swollen ankle is an excessive fluid builds up in the muscles, which causes swelling. In other words, there is rapid increase in weight.
Quick Answer. Causes of swollen ankles or feet include congestive heart failure, pregnancy, injury to the ankle or foot, kidney disease and sitting or being on one's feet for a long time, according to WebMD. If the person's ankles swell in the evening, it could also be a sign the body is retaining salt.