Any of numerous small parasitic nematode worms of the family Ancylostomatidae,having hooked mouthparts with which they fasten themselves to the intestinal walls of various hosts,including human beings,causing ancylostomiasis.

• 钩虫钩虫属的大量小的寄生线虫，嘴部有倒刺，可以固定于寄主内脏壁上（包括人类），能引起钩虫病