different between trunnion vs dispart

English

Alternative forms

• trunion

Etymology

From French trognon (“core, stump”).

Pronunciation

• IPA^(key): /?t??n.j?n/
• Rhymes: -?nj?n

Noun

trunnion (plural trunnions)

1. One of the short stubby bearings on either side of a cannon; a gudgeon.
2. A similar rotational bearing comprising a rotating arc or ring sliding in the groove of a stationary arc, used in machinery to allow a workpiece to be moved relative to a fixed tool.
3. A similar rotational bearing used in automotive suspensions.

English

Pronunciation

• Rhymes: -??(?)t

Etymology 1

From Italian dispartire and its source, Latin dispartire.

Verb

dispart (third-person singular simple present disparts, present participle disparting, simple past and past participle disparted)

1. (transitive, now rare) To part, separate.
   • 1841, Ralph Waldo Emerson, Compensation

     The world will be whole, and refuses to be disparted.

2. (intransitive, obsolete) To divide, divide up, distribute.

Etymology 2

Noun

dispart (plural disparts)

1. The difference between the thickness of the metal at the mouth and at the breech of a piece of ordnance.
   • 1854-1862, Charles Knight, "DISPART", in English Cyclopaedia

     On account of the dispart, the line of aim or line of metal, which is in a plane passing through the axis of the gun, always makes a small angle with the axis.

2. A piece of metal placed on the muzzle, or near the trunnions, on the top of a piece of ordnance, to make the line of sight parallel to the axis of the bore.

Verb

dispart (third-person singular simple present disparts, present participle disparting, simple past and past participle disparted)

1. (transitive) To furnish with a dispart sight.
2. (transitive) To make allowance for the dispart in (a gun), when taking aim.
   • 1583, Richard Lucars, Arte of Shooting

     Every gunner, before he shoots, must truly dispart his piece.