D defs.my
Entry 1 sense Webster, 1913

Hailstone

/(-stōn`)/ · Hail·stone · IPA /ˈheɪlstoʊn/
01 n. A single particle of ice falling from a cloud; a frozen raindrop; a pellet of hail.
  1. 1.
    A single particle of ice falling from a cloud; a frozen raindrop; a pellet of hail.