Changes

'''Fulcrum''', the pivot on which a [[lever]] moves.

'''Fulcrum''', the pivot on which a [[lever]] moves.

==Defiinition==

==Defiinition==

*1. A prop or support; now only spec. in Mech. the point against which a lever is placed to get purchase or upon which it turns or is supported.

*1. A prop or [[support]]; now only spec. in Mech. the point against which a [[lever]] is placed to get purchase or upon which it turns or is supported.

*2. (Chiefly pl.)    a. Bot. Accessory organs or appendages of a plant; e.g. bracts, stipules, tendrils, etc.

*2. (Chiefly pl.)    a. Bot. Accessory organs or appendages of a plant; e.g. bracts, stipules, tendrils, etc.

:b. Ichth. (pl.) The small osseous scales arranged in a row and situated on the anterior ray of the fins of many ganoid fishes.

:b. Ichth. (pl.) The small osseous scales arranged in a row and situated on the anterior [[ray]] of the fins of many ganoid fishes.

:c. Zool. The stem or median part of the incus of the mastax of certain rotifers.

:c. Zool. The stem or median part of the incus of the mastax of certain rotifers.