Spinneret

English Meaning

One of the special jointed organs situated on the under side, and near the end, of the abdomen of spiders, by means of which they spin their webs. Most spiders have three pairs of spinnerets, but some have only two pairs. The ordinary silk line of the spider is composed of numerous smaller lines jointed after issuing from the spinnerets.

1. Any of various tubular structures from which spiders and certain insect larvae, such as silkworms, secrete the silk threads from which they form webs or cocoons.
2. A device for making rayon, nylon, and other synthetic fibers, consisting of a plate pierced with holes through which plastic material is extruded in filaments.

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