A class of nematodes lacking lateral canals opening into the excretory system and phasmids, with few or no caudal papillae, eggs unsegmented, and with polar plugs or hatching in utero. It includes the genera Trichuris, Capillaria, and Trichinella among important parasites of humans and domestic animals. SEE ALSO: Secernentasida. SYN: Adenophorea, Aphasmidia. [G. aden, gland, + phor, thief]

Medical dictionary. 2011.

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  • aphasmid — 1. Lacking phasmids, as seen in nematodes of the class Adenophorasida (Aphasmidia). 2. Common name for a member of the class Aphasmidia, now Adenophorasida. * * * aphas·mid (a fazґmid) [a 1 + phasmid] a nematode belonging to the subclass… …   Medical dictionary

  • Adenophorea — SYN: Adenophorasida …   Medical dictionary

  • Aphasmidia — SYN: Adenophorasida. * * * Aphas·mid·ia .ā .faz mid ē ə n pl a subclass of Nematoda comprising worms in which the sensory organs are often bristlelike, phasmids are lacking or greatly reduced, the lateral cervical papillae are absent, and the… …   Medical dictionary

  • Secernentasida — A class of nematodes possessing lateral canals opening into the excretory system and phasmids; it includes most of the familiar nematode parasites of humans and domestic animals, including the soil borne nematodes, strongyles, and filiariae. SEE… …   Medical dictionary

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