Available Definitions:
1) n. - One of the Insecta; esp., one of the Hexapoda. See Insecta .
2) n. - Any air-breathing arthropod, as a spider or scorpion.
3) n. - Any small crustacean. In a wider sense, the word is often loosely applied to various small invertebrates.
4) n. - Fig.: Any small, trivial, or contemptible person or thing.
5) a. - Of or pertaining to an insect or insects.
6) a. - Like an insect; small; mean; ephemeral.