armguard

/ˈɑrmˌɡɑrd/
noun
  1. A piece of protective gear worn on the arm, especially in archery or fencing.
    • She strapped on her armguard before picking up the bow.
    • Make sure your armguard fits snugly so it doesn't slip during shooting.
    • The fencer's armguard protected his forearm from hits.
Synonyms
What does "armguard" mean? | whatsthatwordmean | whatsthatwordmean