ganoid
/'gænɔid/
Học thuậtThân thiện
Definition
- Noun:
- A type of primitive fish: A "ganoid" is a primitive fish characterized by having thick, bony scales with a shiny, enamel-like covering.
Usage
- The term "ganoid" is used primarily in zoology and ichthyology (the study of fish) to classify and describe a specific, ancient group of fishes. It is a technical term.
Examples
- Noun:
- The sturgeon is a well-known example of a ganoid.
- Ganoids were more common in prehistoric times than they are today.
Advanced Usage
- "Ganoid scale": This is a specific term for the type of scale found on these fish. It is a thick, bony scale often covered with a hard, shiny substance called ganoin.
- The fossil was identified by the distinct structure of its ganoid scales.
Variants and Related Words
- Ganoidal (adj): An alternative adjective form meaning "of or relating to ganoid fishes or their scales."
- The ganoidal plating provided excellent protection.
Synonyms
- Primitive fish: A general term that could include ganoids.
- Ancient fish: Emphasizes the evolutionary history of these species.
Different Meanings
- The word "ganoid" is highly specific and does not have common different meanings in general English. Its use is confined to its zoological definition.
Noun
- primitive fishes having thick bony scales with a shiny covering