Definition, Meaning & Synonyms

trunnion

noun
/ˈtrʌn.jən/
Definition
A trunnion is a cylindrical protrusion used as part of a pivot or support mechanism.
Examples
  • The cannon was mounted on trunnions to allow it to pivot effectively during aiming.
  • In engineering, trunnions are essential for the safe operation of cranes and other heavy equipment.
  • The design of the trunnion provides stability while enabling movement in multiple directions.
Meaning
Trunnions are typically associated with heavy machinery and are used to allow rotating movement in certain mechanical applications.
Synonyms
  • pivot
  • support
  • swing arm