Also found in: Dictionary, Thesaurus, Medical, Wikipedia.


common name for primitive, wingless insectsinsect,
invertebrate animal of the class Insecta of the phylum Arthropoda. Like other arthropods, an insect has a hard outer covering, or exoskeleton, a segmented body, and jointed legs. Adult insects typically have wings and are the only flying invertebrates.
..... Click the link for more information.
 of the family Lepismatidae. The silverfish, which has two long antennae and three long tail bristles, is named for its covering of tiny, silvery scales. It develops directly in six or more molts into an adult about 1-2 in. (1.27 cm) long. It has chewing mouthparts set in a head cavity and eats starch from book bindings, wallpaper, and clothing. The silverfish is common indoors in cool, damp places such as basements. The firebrat, in the same taxonomic family, is found in warm places, e.g., near steampipes and boilers. Silverfish are classified in the phylum ArthropodaArthropoda
[Gr.,=jointed feet], largest and most diverse animal phylum. The arthropods include crustaceans, insects, centipedes, millipedes, spiders, scorpions, and the extinct trilobites.
..... Click the link for more information.
, class Insecta, order Thysanura, family Lepismatidae.



(Lepisma saccharinum), a wingless insect of the subclass Apterygota of the order Thysanura. The narrow body reaches 11 mm in length. It has three long caudal bristles and is covered with fine silvery scales after the third molting. Silverfish reach sexual maturity after ten moltings; development from the egg to adult takes about three years. Adults are able to molt as well. Silverfish are thermophile but can be found everywhere. The insects prefer moist and dark places. They are nocturnal. Silverfish inhabit houses, food storehouses, stores, mills, libraries, and other places. They can infest sugar, bread, flour, groats, paper, wallpaper, and leather.


(invertebrate zoology)
Any of over 350 species of insects of the order Thysanura; they are small, wingless forms with biting mouthparts.


1. a silver variety of the goldfish Carassius auratus
2. any of various other silvery fishes, such as the moonfish Monodactylus argenteus
3. any of various small primitive wingless insects of the genus Lepisma, esp L. saccharina, that have long antennae and tail appendages and occur in buildings, feeding on food scraps, bookbindings, etc.: order Thysanura (bristletails)
References in periodicals archive ?
Beyond that, silverfish control can require use of special residual insecticides that are effective for long periods, dusting or spraying suspect areas, and setting out silverfish bait in possible hiding places.
MICE, rats, silverfish, ants and fleas all discovered in treatment areas at Cefn Coed hospital, Swansea.
c) Termites, fleas, ants, cockroaches, silverfish, or other pests; percentages exclude participants for whom prenatal (one control) or childhood (one case, one control) insecticide exposure was unknown.
Silverfish have been scavenging for several hundred million years and houses offer splendid opportunities for them to carry on.
The club has 200 pegs on the Birmingham-Mainline Canal, 57 pegs on the Tame Valley Canal and 118 pegs on the Walsall Canal, which are all noted for excellent year-round silverfish sport.
As a result, the prevalence of species that depend on sea ice, such as Adelie penguins, Antarctic silverfish and krill, has decreased in the Peninsula's northern region, and new species that typically avoid ice, such as Gentoo and Chinstrap penguins, and lanternfish are moving into the habitat.
This natural non-toxic element has a long history of use in exterminating brazen populations of cockroaches, palmetto bugs, waterbugs, silverfish, termites and, you guessed it, carpenter ants.
This natural non-toxic element, mined from below the Mojave Desert in southern California, has a long history of use in exterminating brazen populations of cockroaches, palmetto bugs, waterbugs, silverfish, termites, and, you guessed it, carpenter ants.
I think I'm the only person in the world who never had a problem with Mims, and he still needs to come up to my house and kill my silverfish so I should put him as number one.
4); milky-gray with light discoloration centrally, posterior tip very dark olive-gray; covered with few silverfish setae, setal sockets dark brown; venter milky-gray with two large lighter patches; spinnerets orange-brown with some dark pigmentation.
Threatened by mildew and silverfish, Clayton's treasure trove of more than 30,000 rare and out-of-print books by Black authors is crammed into an unremarkable Los Angeles garage.
I understand it will be a difficult transition for you, getting used to not living amongst the silverfish, but you might end up liking it here.