- hemizonid
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n. [Gr. hemisys, half; L. zona, girdle](NEMATODA: Secernentea)A nerve commissure from the nerve ring that is highly refractive at the point it joins the ventral nerve cord near the excretory pore; see cephalids, hemizonion, caudalid.
Online Dictionary of Invertebrate Zoology. A.R. Maggenti and S.L. Gardne. 2005.