Meaning of the word trunnion in English

What does trunnion mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

trunnion

US /ˈtrʌn.jən/
UK /ˈtrʌn.jən/

Noun

1.

a cylindrical projection from the side of a cannon or other heavy gun, forming part of the pivot on which it rests

Example:
The cannon's trunnions allowed it to pivot for aiming.
The heavy gun was mounted on its trunnions.
2.

a pivot or projection that supports a rotating part

Example:
The machine's main shaft rotated on sturdy trunnions.
Each end of the cylinder was supported by a trunnion.