Nemathelminthes
noun plural
Nem·a·thel·min·thes
-ˌthel-ˈmin(t)-(ˌ)thēz
in some classifications
: a phylum including the nematodes and horsehair worms and sometimes the acanthocephalans, rotifers, gastrotrichs, and minute marine organisms of a related class (Kinorhyncha) which are all more or less wormlike animals with a cylindrical unsegmented body covered by an ectoderm without cilia that secretes an external cuticle
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“Nemathelminthes.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/Nemathelminthes. Accessed 9 Jul. 2026.
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