fulcrum
ful·crum / ˈfoŏlkrəm; ˈfəl-/ • n. (pl. -cra / -krə/ or -crums) the point on which a lever rests or is supported and on which it pivots. ∎ a thing that plays a central or essential role in an activity, event, or situation: research is the fulcrum of the academic community.
fulcrum
fulcrum. A prop, support, or fixed point on which a lever moves, i.e. about which rotation can take place. It is the point beyond which a cantilever extends into space, its other end anchored on the opposite side of the fulcrum.
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fulcrum