a specialized nozzle-like organ connected to an internal silk gland that allows an insect larva to spin a silk thread. Butterfly caterpillars spin silk threads that they can follow so as not to get lost, and to suspend their chrysalis from a leaf or twig. Many moth larvae spin protective silken cocoons during metamorphosis from larva to pupa.

Gland beneath the caterpillar's head used for producing silk

(noun) opening of the silk gland

a small tubular appendage from which silk threads by spiders and many larval insects

Organ on the bottom of the larva head used to spin silk; in spiders.

A spinneret is a tube-like structure on a larva's head that contains the spinning apparatus of the larva (caterpillar). The caterpillar draws silk (which is made in the salivary glands) from a tube in the spinneret. The silk dries when exposed to the air. Caterpillars use this silk to support themselves and to make webs and cocoons.

A spinneret is a spider's silk-spinning organ. It is usually on the underside of a spider's abdomen, to the rear. Most spiders have six spinnerets; some have four or two.

A metal disc containing numerous minute holes used in manufactured fiber extrusion. The spinning solution or melted polymer is forced through the holes to form fiber filaments.

A metal nozzle type device with very fine holes used in the spinning process of manufactured fibers. The spinning solution is forced or extruded through the small holes to form continuous filament fibers. The holes in the spinneret can vary in diameter to produce fibers of various denier.

A device with several small holes through which viscose fiber solutions pass to become shaped into fibers.

A type of extrusion die, eg, a metal plate with many tiny holes, through which a plastic melt is forced to make fine fibers and filaments. Filaments may be hardened by cooling in air, water etc or by chemical action.