English

Noun

poitrinal ‎(plural poitrinals)

1. Protective armor for a horse's breast.
   • 1786, Francis Grose, A Treatise on Ancient Armour and Weapons, page 30:

     The Poitrinal, Pectoral, or Breast Plate was formed of plates of metal rivetted together, which covered the breast and shoulders of the horse, it was commonly adorned with foliage, or other ornaments engraved or embossed.

2. A fire arm (with a wheel lock) between the arquebuse and pistol, which was held against the breast when fired; to prevent injury from its recoil, the soldier was provided with a cushion or pad.^[1]

References

1. ↑ Robert Burn (1842). A Naval and Military Technical Dictionary of the French Language: With Explanations of the Various Terms in English, p. 131

Old French

Etymology

poitrine +‎ -al.

Adjective

poitrinal m ‎(oblique and nominative feminine singular poitrinal or pointrinale)

1. chest (relating to the chest, the area between the neck and the belly)

Noun

poitrinal m ‎(oblique plural poitrinaus or poitrinax or poitrinals, nominative singular poitrinaus or poitrinax or poitrinals, nominative plural poitrinal)

1. chest (the area between the neck and the belly)

References

• (fr) Godefroy, Frédéric, Dictionnaire de l'ancienne langue française et de tous ses dialectes du IX^e au XV^e siècle (1881) (poitrinal)