释义 |
DictionarySeeNematodanematodes
nematodes Unsegmented, threadlike worms of the phylum Nematoda . Many nematodes are parasitic on humans. They include the whipworm Trichuris trichuria , the muscle worm Trichinella spiralis , the intestinal parasite Strongyloides stercoralis , the hook worms Ancylostoma duodenale and Necator americanus , the threadworm Enterobius or Oxyuris vermicularis , the roundworm Ascaris lumbricoides , the filarial worms and the puppy dog worm Toxocara canis . |