spinneret

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spin·ner·et / ˌspinəˈret/ • n. Zool. any of a number of different organs through which the silk, gossamer, or thread of spiders, silkworms, and certain other insects is produced. ∎  (in the production of man-made fibers) a cap or plate with a number of small holes through which a fiber-forming solution is forced.

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