arachnidium

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noun

The collective abdominal appendages from which a spider produces a web or silk.

Similar
spinnerette
Scrabble 19
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Meanings

nounarachnidium (plural arachnidia)

plural arachnidia

  1. datedbiologyThe collective abdominal appendages from which a spider produces a web or silk.

    Spiders construct a web formed of the threads secreted by the arachnidium.

    1910, Thomas Jeffery Parker, William Aitcheson Haswell, A Text-book of Zoology, volume 1, page 672

    Synonyms: spinnerette

Synonyms & antonyms

nounThe collective abdominal appendages from which a spider produces a web or silk.

Similar
spinnerette
Cite this entry
APA

arachnidium. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/arachnidium

MLA

“arachnidium.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/arachnidium. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “arachnidium,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/arachnidium.

Source: arachnidium on Wiktionary, CC BY-SA 4.0.