acanthocephalan

n.any of various worms living parasitically in intestines of vertebrates having a retractile proboscis covered with many hooked spines

同义词：spiny-headed worm

1. Acanthocephalans are known for their spiny proboscis, which they use to anchor themselves to the host's intestinal wall.
   棘头虫以其带刺的吻部而闻名，它们用此来固定在宿主的肠壁上。
2. The life cycle of an acanthocephalan involves multiple hosts, typically including an invertebrate and a vertebrate.
   棘头虫的生命周期涉及多个宿主，通常包括无脊椎动物和脊椎动物。