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