extrude

This term describes a mechanical or biological process of pushing material outward. In industrial manufacturing, it refers to the high-pressure forcing of molten plastic or metal through a die, resulting in a uniform profile like a pipe or rail. This usage is technical and precise, emphasizing the transformation of shape through pressure.

In biological contexts, the word describes the active expulsion of an organ or substance from a body cavity. This differs from passive leaking or secretion, as it implies a deliberate, muscular, or structural thrusting motion to move something from an internal space to the outside.