barrel sponge
barrel sponge noun: a sponge of the genus Xestospongia, especially Xestospongia testudinaria.

Noun
barrel sponge (plural barrel sponges)
- A sponge of the genus Xestospongia, especially Xestospongia testudinaria.
- In making use of something as simple as a difference in water speed, barrel sponges are exploiting energy from currents and tides that ultimately derive from the gravitational pull exerted by the Moon and Sun.2012, Caspar Henderson, The Book of Barely Imagined Beings, Granta Books, published 2013, page 29
Forms of barrel sponge
| plural | barrel sponges |
|---|
Questions about barrel sponge
- What does barrel sponge mean?
- Barrel sponge means a sponge of the genus Xestospongia, especially Xestospongia testudinaria.
- What part of speech is barrel sponge?
- Barrel sponge is a noun.
- What is the plural of barrel sponge?
- The plural of barrel sponge is barrel sponges.
Words near barrel sponge in the dictionary
Source and license
Adapted from Wiktionary: barrel sponge (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.
Last updated:
Cite this entry: “barrel sponge.” Word.ws, https://word.ws/barrel_sponge. Based on Wiktionary, CC BY-SA 4.0.
