
1) Class 2) Class hexapoda 3) Class insecta 4) Insecta
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https://www.crosswordclues.com/clue/hexapoda

1) Insecta
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https://www.crosswordclues.com/clue/hexapoda

The subphylum Hexapoda (from the Greek for six legs) constitutes the largest (in terms of number of species) grouping of arthropods and includes the insects as well as three much smaller groups of wingless arthropods: Collembola, Protura, and Diplura (all of these were once considered insects). The Collembola (or springtails) are very abundant in ...
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http://en.wikipedia.org/wiki/Hexapoda

• (n. pl.) The true, or six-legged, insects; insects other than myriapods and arachnids.
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http://thinkexist.com/dictionary/meaning/hexapoda/

<zoology> The true, or six-legged, insects; insects other than myriapods and arachnids. ... The Hexapoda have the head, thorax, and abdomen differentiated, and are mostly winged. They have three pairs of mouth organs, viz, mandibles, maxillae, and the second maxillae or labial palpi; three pairs of thoracic legs; and abdominal legs, which are...
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http://www.encyclo.co.uk/local/20973
Hex·ap'o·da noun plural [ New Latin , from Greek
'e`x six +
-poda .]
(Zoology) The true, or six-legged, insects; insects other than myriapods and arachnids. » The Hexapoda have the head, thorax, and abdomen differentiated, and are mostly winged. They have three pa...
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http://www.encyclo.co.uk/webster/H/42

Type: Term Pronunciation: hek-sap′ō-dă Synonyms: Insecta
Found on
http://www.medilexicon.com/medicaldictionary.php?t=40888
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