Arachnidium

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 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."

Example

More examples

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

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.