• WordNet 3.6
    • n Insecta insects; about five-sixths of all known animal species
    • ***
Webster's Revised Unabridged Dictionary
    • Insecta (Zoöl) In a more restricted sense, the Hexapoda alone. See Hexapoda.
    • Insecta (Zoöl) In the most general sense, the Hexapoda, Myriapoda, and Arachnoidea, combined.
    • Insecta (Zoöl) One of the classes of Arthropoda, including those that have one pair of antennæ, three pairs of mouth organs, and breathe air by means of tracheæ, opening by spiracles along the sides of the body. In this sense it includes the Hexapoda, or six-legged insects and the Myriapoda, with numerous legs. See Insect n.
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Century Dictionary and Cyclopedia
    • insecta A class or other large division of invertebrated animals, to which different limits have been assigned. With Linnæus, a class divided into eight orders: Coleoptera, Hemiptera, Lepidoptera, Neuroptera, Hymenoptera, Diptera, and Aptera. But the last of these orders included crustaceans and arachnidans, so that in this sense Insecta corresponds to the Cuvierian Articulata, the Latreillean Condylopoda, or the modern Arthropoda, one of the main branches of the animal kingdom.
    • ***


Webster's Revised Unabridged Dictionary
NL. See Insect


In literature:

Take heed of such insectae hereafter.
"Epicoene" by Ben Jonson
"The Life-Story of Insects" by Geo. H. Carpenter
It is hard to believe that they all belong to the same family called insecta, but they do.
"Little Busybodies" by Jeanette Augustus Marks and Julia Moody
Insect: a member of the class Insecta strictly limited.
"Explanation of Terms Used in Entomology" by John. B. Smith
On the other hand, we certainly cannot regard the Collembola as a group equivalent in value to the Insecta.
"Our Common Insects" by Alpheus Spring Packard
Fauna Sueciae Regni, Mammalia, Aves, Amphibia, Pisces, Insecta, Vermes; distributa per classes, ordines, genera et species.
"Lives of Eminent Zoologists, from Aristotle to Linnæus" by William MacGillivray
The following list gives the orders or principal groups into which the Class Insecta may be divided.
"On the Origin and Metamorphoses of Insects" by Sir John Lubbock
But facts like those are, after all, nothing more than such as we may trace the counterpart of in higher animals than the Insecta.
"On the Variation of Species, with Especial Reference to the Insecta ; Followed by an Inquiry into the Nature of Genera" by Thomas Vernon Wollaston
The whole of the work was his own, with the exception of the Insecta, in which he was assisted by his friend P. A. Latreille.
"Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 8" by Various
It is estimated that four-fifths of the species comprised within the animal kingdom belong to the class of the Insecta.
"Taxidermy and Zoological Collecting" by William T. Hornaday

In news:

Insecta -palooza is a catchy name for the event, but Frederique Laviopierre (right) confides that it wasn't the one they started with.
Some new products and approaches for making lice insecta non grata on children's heads.

In science:

Sperm structure and ultrastructure in Hymenoptera (Insecta).
The hydrodynamics of swimming microorganisms