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fulcrum

fulcrum

3 7.9
The point a lever turns on
  • noun
  • /ˈfʌlkrəm/
  • Specialized
translation icon : punto de apoyo
  • Clearly, if we move the fulcrum and we put it here, it doesn't work.

Clearly, if we move the fulcrum and we put it here, it doesn't work.

Examples

  • Big W on the left, distance D from the fulcrum, little W weight on the other side, distance little D from the fulcrum.

  • Through its intersection with the other vertical braces in the composition, the pedestal table becomes a fulcrum around which everything else pivots.

    Academic text (1993)
  • This is the point at which all lift will act around like the fulcrum on a seesaw.

  • This trade becomes the fulcrum upon which all the action tilts and yaws.

    Blog text (2)
  • Experiments show that the weights times the distances from the fulcrum must be equal on the two sides for the teeter-totter to balance.

    Blog text (7)
  • EXT. BEACH - LATER: Using a palm tree as a fulcrum, Chuck hauls hard on a rope made of vines, pulling the barrel up off the beach.

    Fiction book (2000)
  • In physics class, we learned that the fulcrum is the point at which a lever pivots and balances the weights on either side.

  • The engineer designed a system where the fulcrum would allow the arm to move easily up and down.

  • To lift the heavy box, she placed the fulcrum closer to the load for better leverage.

Synonyms

pivot
vsfulcrum
15 3.9

A fixed point that something turns around

is a physical support for lever movement rather than an abstract center
anchor point
vsfulcrum
1 4.1

A fixed place used to hold, support, or guide something

is the turning support for a lever rather than a static reference point
trunnion
vsfulcrum
  • Specialized
1 9.9

A round metal support that lets doors or machine parts turn

is a simple point or support for a lever, not a shaped part

Surface Forms

fulcrum singular
fulcrums plural

Etymology

Fulcrum comes from Latin fulcire, which means 'to prop up' or 'support'. Imagine a seesaw balanced on a rock; that rock holds and lets the board turn. So a fulcrum is the point or support a lever pivots on.