Insect1. (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.
Thesaurus Entries
Chilopoda, Chordata, Echiuroidea, Ectoprocta, Entoprocta, Lepisma, Monoplacophora, Nemertinea, Phoronidea, animal, ant, aphid, aphis, arachnid, arthropod, assassin bug, beast, bedbug, bee, beetle, bluebottle, borer, bug, butterfly, caddis fly, caterpillar, centipede, chafer, chigoe, chilopod, cicada, cicala, cockchafer, cockroach, crane fly, cricket, cucumber flea beetle, cur, curculio, daddy longlegs, damselfly, deer fly, diplopod, dobson fly, dog, dragonfly, drosophila, dung beetle, earwig, ephemerid, firefly, flea, fly, gadfly, glowworm, gnat, grain weevil, grasshopper, harvestman, hexapod, hornet, hound, hyena, jigger, katydid, kissing bug, lacewing, lady beetle, ladybird, ladybug, lantern fly, larva, locust, louse, maggot, mantis, mayfly, mealworm, midge, millepede, miller, millipede, mite, mole cricket, mongrel, mosquito, moth, nymph, pig, polecat, reptile, rice weevil, roach, scarab, scorpion, serpent, silverfish, skunk, snake, spider, springtail, squash bug, stag beetle, stinkbug, stone fly, swine, syrphus fly, tarantula, termite, tick, tiger moth, tsetse fly, tumblebug, varmint, vermin, viper, walkingstick, wasp, water bug, weevil, whelp, wood tick, worm, yellow jacket