spinneret

(redirected from Spinnerets)
Also found in: Dictionary, Encyclopedia.
Related to Spinnerets: cirri, chelicerae, Pedipalps, tracheae, uropods

spinneret

one of a number of tubular appendages that, in spiders and some insects, exudes silk threads. In spiders the silk is used to make webs, and in insects to make cocoons. Spinnerets in insects and spiders are not homologous structures.
Mentioned in ?
References in periodicals archive ?
For comparison, the fiber productivities for four different kinds of spinnerets, including cylinder [23], disk [23], coil [24], and needle roller, are shown in Fig.
The feed rate of the solution has to be sufficient to supply the spinnerets with a constant solution flow.
The function of both types of ampullate glands is to produce draglines (silk threads that some spiders release while walking) and attach the egg sac to the spinnerets, as is typical in wolf spiders (Townley & Tillinghast 2003).
These include spin packs or spinnerets and melt-blown or spunbond dies with lengths of up to six meters.
Ventral side with median longitudinal dark brown band extending from epigastric furrow to base of Spinnerets, sides chalk white.
Venter black with two semi-circle parallel pale line enclosing black area, broken posteriorly going around spinnerets on black area appear four silvery white hairy patches reflecting on black area.
(3) The plastic is heated and forced through spinnerets to create strands which harden and are collected in containers.
Glands on my abdomen, called spinnerets, would release liquid silk that looks like thread.
PLS = posterior lateral spinnerets, PMS = posterior median spinnerets.
Six tenders for the supply of (a) Integrated Hollow Fiber Spinning & Coating Line, (b) Analyzer Potential Zeta & Tester Angular Contact, (c) Scanning Electronic Microscope (SEM), (d) Atomic Force Microscope (AFM), (e) Microwave Drying System For Hollow Fibers, also (f) Hollow Fiber Spinning Nozzle (Spinnerets).
Spiders in the Family Theraphosidae are distinguished from other spiders by the presence of two pair of booklungs; cheliceral fangs open paraxial; maxillae and labial cuspules present; distinct lobe on the anterior maxillae; two pairs of spinnerets; posterior lateral spinnerets are digitiform (finger-like); eight eyes in two close rectangular rows on a small anterior tubercle on the carapace; the legs and body are hirsute (hairy) and the tarsi (feet) are scopulated (padded) with retractable claw tufts (Raven, 1985).
Lin, "Needleless electrospinning of uniform nanofibers using spiral coil spinnerets," Journal of Nanomaterials, vol.