1. small six-legged animal: an air-breathing invertebrate animal arthropod with a body that has well-defined segments, including a head, thorax, abdomen, two antennae, three pairs of legs, and usually two sets of wings. There are more than a million species of insects including flies, crickets, bees, beetles, and gnats. Class Insecta.
2. something like insect: a small animal that resembles an insect, e.g. a spider or centipede
(
not in technical use
)
3. contemptible person: somebody viewed with contempt, especially somebody regarded as unimportant
(
insult
)
