hairball

名词 hairball:

1. a compact mass of hair that forms in the alimentary canal (especially in the stomach of animals as a result of licking fur)
   同义词：hair ball, trichobezoar

hair.ball

n.（名词）
A small mass of hair located in the stomach or intestine of an animal, such as a cat, resulting from an accumulation of small amounts of hair that are swallowed each time the animal licks its coat.
毛团：存在于动物（如猫等）的胃或肠中的一团毛发，这是由于动物每次舔毛时吞下的少量毛发积聚而成