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spicule - Wiktionary, the free dictionary

https://en.wiktionary.org/wiki/spicule

“A tiny glass flake formed during the manufacture of glass vials. (biology) Any of many needle-like crystalline structures that provide skeletal support in marine invertebrates like sponges. 1860, Recreative Science, page 110: Tear it up, and put a fragment under the microscope, and, wonder of...” (from the page’s text)

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Language: English
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Answered: OK (200), HTML
Last read: 8 Oct 2026
In our index since: 8 Oct 2026
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Links to it: 1 link from 1 site

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