👉 In biology, an "ephelcyctic" is a type of cyst or sac in a fish. A cyst is a fluid-filled organ that develops from a primary body cavity such as the esophagus or stomach. Cysts are typically found within the fish's body and can be either internal (like a pharyngeal cyst) or external (like an epiblast). The structure of an ephelcyctic usually consists of a sac filled with fluid, surrounded by
