DictionaryfulcrumPoint of support
noun

fulcrum

FUUL-krum/ˈfʊlkrəm/

A supporting point around which something turns.

The triangular support provides a fulcrum beneath the lever holding the stone.

A simple wooden lever rests across the narrow crest of a sturdy triangular support, with a stone load on its short end.
Etymology

Latin fulcrum named a bedpost or couch foot—something that holds furniture up. The mechanical meaning keeps this supporting function but applies it to the point on which a lever turns.

In context

FlightInsight6:43
this point is our center of gravity if we swap one of these weights for a heavier one at the same position in order to balance this plank now that fulcrum our center of gravity will need to move closer
How Center of Gravity Affects Flight | Tail Down Force | Aircraft Stability

More examples

  • She uses a flat rock as a fulcrum for the crowbar.
  • Moving the fulcrum closer to the load makes lifting easier.
  • Both levers rotate around fixed fulcrums.

Forms

fulcrum · fulcrums · fulcra

Similar words

pivot
Often refers to a pin or shaft enabling rotation.
support
A broader term that does not necessarily imply rotation.