Hookworm and Nematode

Hookworm noun - Parasitic bloodsucking roundworms having hooked mouth parts to fasten to the intestinal wall of human and other hosts.

Nematode and hookworm are semantically related. In some cases you can use "Nematode" instead a noun "Hookworm".

Nematode noun - Unsegmented worms with elongated rounded body pointed at both ends; mostly free-living but some are parasitic.

Hookworm and nematode are semantically related. You can use "Hookworm" instead a noun "Nematode".