fulcrum

fulcrum is a   Noun

Definition:

[1] A prop or support.

[2] That by which a lever is sustained, or about which it turns in lifting or moving a body.

[3] An accessory organ such as a tendril, stipule, spine, and the like. [R.] Gray.

[4] The horny inferior surface of the lingua of certain insects.

[5] One of the small, spiniform scales found on the front edge of the dorsal and caudal fins of many ganoid fishes.

[6] The connective tissue supporting the framework of the retina of the eye.

Synonyms: