teleost
Definition
Noun: A teleost is a member of the subclass Teleostei, which constitutes the vast majority of existing bony fish species. Teleosts are characterized by a movable upper jaw, symmetrical tail fins, and highly evolved, bony skeletons.
Usage
The word teleost is a scientific term used primarily in biology, zoology, and ichthyology to classify and describe this dominant group of ray-finned fish. It is used as a countable noun.
Examples
- Most common fish, such as salmon, tuna, and goldfish, are teleosts.
- The researcher studied the evolutionary adaptations of the teleost.
- Teleostei, the group to which teleosts belong, first became dominant in the Jurassic period.
Advanced Usage
- As a modifier: The term can be used adjectivally to describe characteristics or research related to this group.
- Teleost anatomy differs from that of cartilaginous fish like sharks.
- She is a leading expert in teleost genomics.
Variants and Related Words
- Teleostean (adjective & noun): A less common variant with the same meaning.
- The teleostean fossil record is extensive.
- Teleostei (noun): The scientific name for the subclass containing all teleosts.
Synonyms
- Bony fish (This is a broader, more common term, but note that not all bony fish (e.g., sturgeons, gars) are teleosts; teleosts are the most advanced and numerous group within bony fish.)
Different Meanings
The word teleost has no other common meanings outside its specific zoological classification.
Noun
-
a bony fish of the subclass Teleostei
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