Arachnidium
noun
noun ·Rare ·Advanced level
Definitions
Noun
- 1 The collective abdominal appendages from which a spider produces a web or silk. dated
"Spiders construct a web formed of the threads secreted by the arachnidium."
Synonyms
All synonymsExample
More examples"Spiders construct a web formed of the threads secreted by the arachnidium."
More for "arachnidium"
Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.