英和和英

語源

dust +‎ ball

名詞

dustball (複数形 dustballs)

1. A ball of dust.
2. (archaic) A ball of grain-dust formed in the intestine of a diseased horse.
   • 1885, George Armatage, Every Man His Own Horse Doctor (page 336)

     Long residence in lime districts had furnished the experience, that phosphatic calculi are not even as common as among the horses and ponies of coal-mines; and, further, that both phosphatic calculi, and more generally mixed or the dustball kind, are very prevalent in those pits, and even districts above ground, where no lime-water whatever can be obtained.