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spinneret |
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spinneret 1. any of several organs in spiders and certain insects through which silk threads are exuded 2. a finely perforated dispenser through which a viscous liquid is extruded in the production of synthetic fibres spinneret [‚spin·ə′ret] (engineering) An extrusion die with many holes through which plastic melt is forced to form filaments. (invertebrate zoology) An organ that spins fiber from the secretion of silk glands. (textiles) A metal device with tiny holes through which a solution is forced at high speeds to make fine textile filaments. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| The spider secretes the watery substance through openings on its abdomen called spinnerets. Only later in their evolutionary history did spiders develop spinnerets on their abdomens to produce silk for webs. The foot's silk-secreting capability may have emerged after the spiders' abdominal spinnerets were already producing the material for webs, the researchers say. |
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