Nematomorpha

noun plural

Nem·​a·​to·​mor·​pha ˌnem-ət-ə-ˈmȯr-fə  nə-ˌmat-ə- 

: a phylum that is related to the phylum Aschelminthes and comprises the horsehair worms which were formerly often grouped with the nematodes but are distinguished from these by possession of a true body cavity, gonads discontinuous with their ducts, and an atrophied digestive tract in the adult

nematomorph

ˈnem-ət-ə-ˌmȯrf  nə-ˈmat-ə- 

noun or adjective