insecta

• ⇰ One of the classes of <phylum>Arthropoda</phylum>, including those that have one pair of antenn&aelig;, three pairs of mouth organs, and breathe air by means of trache&aelig;, opening by spiracles along the sides of the body. In this sense it includes the
• ⇰ In a more restricted sense, the Hexapoda alone. See Hexapoda>.
• ⇰ In the most general sense, the Hexapoda, Myriapoda, and Arachnoidea, combined.