D defs.my
Entry 1 sense Webster, 1913

hairball

/(hâr"bĕl`)/ · hair·ball · IPA
01 n. a compact mass of hair that forms in the stomach of animals as a result of licking fur; as, the cat coughed up a hairball right on the new rug.
  1. 1.
    a compact mass of hair that forms in the stomach of animals as a result of licking fur; as, the cat coughed up a hairball right on the new rug.