glass sponge
noun
: any of a class (Hexactinellida synonym Hyalospongiae) of chiefly deep-water siliceous marine sponges with 6-rayed spicules and a skeleton often resembling glass when dried
Examples of glass sponge in a Sentence
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Learn more about some of the best new discoveries:
Deep-sea creature — waiting in ‘glass sponges’ to ambush — is new species in Pacific
Off the southern coast of Japan, a new species of marine bristle worm, Eunice siphoninsidiator, was discovered living within the structure of glass sponges.
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Stories By Real-Time News Team, With Ai Summarization, Miami Herald, 14 Mar. 2025
Ethereal white sponge gardens that were thousands of feet long, flying spaghetti monsters (a type of colonial hydrozoan), casper octopuses, thousand-year-old glass sponges and towering forests of bamboo corals made up just a few of the life forms found here.
—Scott Travers, Forbes, 14 Dec. 2024
In the East China Sea, scientists discovered the skeleton of a glass sponge that had lived for some 11,000 years.
—Brian Handwerk, Smithsonian Magazine, 11 Dec. 2024
Most notable among them was Charles Wyville Thomson, a Scotsman who in the 1860s hauled up glass sponges, sea spiders, and other curiosities—thus debunking a theory that the deep ocean was lifeless.
—Amy Brady, Scientific American, 20 June 2023
Among a bonanza of fossils, the married duo has cataloged 170 marine species, including glass sponges, crustaceans called horseshoe crab shrimp, and a six-legged arthropod that may have given rise to insects.
—Byscience News Staff, science.org, 4 May 2023
Other critters float around them, including anemones with 8-foot tentacles, rippling squidworms, glass sponges, and ghostly white Dumbo octopuses.
—WIRED, 28 Feb. 2023
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Stories By Real-Time News Team, With Ai Summarization, Miami Herald, 14 Mar. 2025
Ethereal white sponge gardens that were thousands of feet long, flying spaghetti monsters (a type of colonial hydrozoan), casper octopuses, thousand-year-old glass sponges and towering forests of bamboo corals made up just a few of the life forms found here.
—Scott Travers, Forbes, 14 Dec. 2024
In the East China Sea, scientists discovered the skeleton of a glass sponge that had lived for some 11,000 years.
—Brian Handwerk, Smithsonian Magazine, 11 Dec. 2024
Most notable among them was Charles Wyville Thomson, a Scotsman who in the 1860s hauled up glass sponges, sea spiders, and other curiosities—thus debunking a theory that the deep ocean was lifeless.
—Amy Brady, Scientific American, 20 June 2023
Among a bonanza of fossils, the married duo has cataloged 170 marine species, including glass sponges, crustaceans called horseshoe crab shrimp, and a six-legged arthropod that may have given rise to insects.
—Byscience News Staff, science.org, 4 May 2023
Other critters float around them, including anemones with 8-foot tentacles, rippling squidworms, glass sponges, and ghostly white Dumbo octopuses.
—WIRED, 28 Feb. 2023
Cite this Entry
“Glass sponge.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/glass%20sponge. Accessed 31 Oct. 2025.
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