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ful·crum  audio  (flkrm, fl-) KEY 

NOUN:
pl. ful·crums or ful·cra  (-kr) KEY 
  1. The point or support on which a lever pivots.
  2. Zoology An anatomical structure that acts as a hinge or a point of support.
  3. An agent through which vital powers are exercised.

ETYMOLOGY:
Latin, bedpost, from fulcre, to support


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