noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A vitreous sponge of the order Hexactinellida, with a long stem, consisting of a bundle of long glassy siliceous fibres twisted together. countable, uncountable

Synonyms

All synonyms

glass sponge

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