protruder
Protruder is a generic, descriptive term for a component or device whose primary function is to extend outward from a body, surface, or system. The word derives from protrude and the agent noun suffix -er; it is typically used informally or descriptively rather than as a formal technical designation.
In engineering and manufacturing, protruders appear as extension elements that interact with the external environment. Common
In biology, outward projections of tissues or organs—such as a proboscis, tentacle, or siphon—may be described
Design considerations include extension length, retraction method, stiffness, wear resistance, and environmental tolerance. Protruders provide reach