glass sponge
Definition
- Noun:
- A type of deep-sea sponge: A "glass sponge" is a marine animal belonging to the class Hexactinellida (historically Hyalospongiae). It is characterized by having a skeleton made of silica, which forms intricate, often beautiful, glass-like structures.
Usage
- The term "glass sponge" is used specifically in marine biology and zoology to refer to these unique sponges. It is a common name, not a scientific one, derived from the glass-like appearance of their silica skeletons.
- Example:
- Example:
Advanced Usage
- In ecological context: Glass sponges are important for deep-sea ecosystems, providing habitat for other organisms.
- The discovery of a living glass sponge reef has significant implications for marine conservation.
- In paleontology: Fossilized glass sponges are valuable for understanding ancient marine environments.
- These sedimentary rocks contain well-preserved fossils of glass sponge spicules.
Variants and Related Words
- Hexactinellid (n): The scientific name for the class of sponges to which glass sponges belong. This is a more precise term.
- Hexactinellids are found primarily in deep ocean waters.
- Siliceous sponge (n): A broader category of sponges whose skeletons are made of silica, which includes glass sponges.
- Unlike calcareous sponges, siliceous sponges like the glass sponge have skeletons of silica.
Synonyms
- Hexactinellid sponge: The formal, scientific synonym.
- Siliceous sponge: A descriptive synonym highlighting the skeletal material.
Related Terms and Phrases
- Spicule (n): A small, needle-like structural element that makes up the skeleton of a sponge. Glass sponge spicules are made of silica and are often six-pointed (hexactine).
- The glass sponge's skeleton is composed of fused spicules.
- Reef-forming: Some species of glass sponges can form large, reef-like structures on the seafloor.
- The glass sponge is a rare example of a modern, reef-forming sponge.
Noun
-
a siliceous sponge (with glassy spicules) of the class Hyalospongiae
