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Trunnion - Meaning, Definition & English Examples

A trunnion is a cylindrical projection on a component, such as a cannon or engine, that serves as a pivot point for rotation or support. It is commonly used in mechanical systems.

trunnion

/ˈtrʌn.jən/ /ˈtrʌn.i.ən/

Definition:

A cylindrical projection on a cannon or other machinery, serving as a pivot or support.

Synonyms:

pivot, spindle, axle, journal

Part of Speech:

noun

Antonyms:

(No direct antonyms; context-dependent)

Common Collocations:

trunnion bearing, trunnion mount, trunnion block, trunnion axis

Derivatives:

trunnioned, trunnioning

Usage Tips:

Use "trunnion" when referring to mechanical pivots, especially in artillery or engineering contexts.

Common Phrases:

(No common phrases or idioms)

Etymology:

From French *trognon* ("core, stump"), likely of Germanic origin.

Examples:

  • 1. The cannon's trunnions rested securely in the carriage.
  • 2. The engineer inspected the trunnion for wear and tear.
  • 3. A broken trunnion can cause machinery to malfunction.
  • 4. The trunnion mount allows the device to rotate smoothly.

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