👉 In the context of medicine and biology, a "poecilitic" is a type of cancer that originates from the lining of small blood vessels called capillaries. This condition is more common in people who have undergone major surgery or received radiation therapy to treat other cancers. The term comes from the Latin word "pox," which means "sickness," and "cilius," which refers to a group of capillary-like structures that line the walls of blood vessels. The poec