drawing by margueritaFulcrum 1
Definition: A prop or support.
Definition: That by which a lever is sustained, or about which it turns in lifting or moving a body.
Definition: An accessory organ such as a tendril, stipule, spine, and the like.
Definition: The horny inferior surface of the lingua of certain insects.
Definition: One of the small, spiniform scales found on the front edge of the dorsal and caudal fins of many ganoid fishes.
Definition: The connective tissue supporting the framework of the retina of the eye.
Definition: the pivot about which a lever turns