
1) Mind-altering parasite 2) Phylum 3) Phylum acanthocephala
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https://www.crosswordclues.com/clue/acanthocephala

Acanthocephala (Greek ἄκανθος, akanthos, thorn + κεφαλή, kephale, head) is a phylum of parasitic worms known as acanthocephalans, thorny-headed worms, or spiny-headed worms, characterized by the presence of an eversible proboscis, armed with spines, which it uses to pierce and hold the gut wall of its host. Acanthocephalans have comp...
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http://en.wikipedia.org/wiki/Acanthocephala
[insect] Acanthocephala is a genus of true bugs in the family Coreidae. The name is derived from the Greek akanth- meaning `thorn/spine` + kephale meaning `head` This name is in reference to the spine on the front of the head. The known species of Acanthocephala are: ...
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http://en.wikipedia.org/wiki/Acanthocephala_(insect)

• (n. pl.) A group of intestinal worms, having the proboscis armed with recurved spines.
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http://thinkexist.com/dictionary/meaning/acanthocephala/

(ә-kan″tho-sef´ә-lә) a phylum of elongate, mostly cylindrical organisms (thorny headed worms) parasitic in the intestines of all classes of vertebrates.
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http://www.encyclo.co.uk/local/21001
A·can`tho·ceph'a·la noun plural [ New Latin , from Greek ... a spine, thorn + ... head.]
(Zoology) A group of intestinal worms, having the proboscis armed with recurved spines.
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http://www.encyclo.co.uk/webster/A/12

Type: Term Pronunciation: ă-kan′thō-sef′ă-lă Definitions: 1. The thorny-headed worms, a phylum (formerly considered a class) of obligatory parasites without an alimentary canal, characterized by an anterior introvertible spiny proboscis. They superficially resemble nematodes but are cestodelike in other traits, and h...
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http://www.medilexicon.com/medicaldictionary.php?t=369

[
n] - phylum or class of elongated wormlike parasites that live in the intestines of vertebrates: spiny-headed worms
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http://www.webdictionary.co.uk/definition.php?query=Acanthocephala
phylum Acanthocephala noun phylum or class of elongated wormlike parasites that live in the intestines of vertebrates: spiny-headed worms
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https://www.encyclo.co.uk/local/20974
No exact match found.