fulcrum
ful.crum \'fu.l-kr*m, 'f*l-\ \-kr*\ n or fulcrums or ful.cra [LL, fr. L, bedpost, fr. fulcire to prop - more at BALK] pl 1a: PROP; specif : the support about which a lever turns 1b: one that supplies capability for action 2: a part of an animal that serves as a hinge or support