Definition of ganoid in English:
1(Of fish scales) hard and bony with a shiny enamellike surface. Compare with ctenoid and placoid.
- They also possess a heterocercal caudal fin and remnants of ganoid scales; both are uncommon among extant actinopterygians.
- Gar species in North America are easily recognized by their long snouts, sharply toothed jaws, non-overlapping and diamond shaped ganoid scales, and posterior placement of dorsal and anal fins on the body.
- This species has specialized scales, which are called ganoid scales, and it has nostrils or nares on tentacles that protrude from the head.
nounBack to top
A primitive fish that has ganoid scales, e.g., a bichir, sturgeon, or freshwater garfish.
- In the collection of ganoids the most complete is representation of Acipenseriformes, mainly of acipenserids proper.
- In the ganoids the upper lobe of the tail fin is the largest.
- The ganoids had already reached their evolutionary climax in the Permian and Triassic, some 270-190 million years ago; today they are few in number when compared with the dominant bony fishes.
Definition of ganoid in:
- British & World English dictionary
What do you find interesting about this word or phrase?
Comments that don't adhere to our Community Guidelines may be moderated or removed.
Most popular in the US
Most popular in the UK
Most popular in Australia
Most popular in Malaysia
Most popular in India
Most popular in Pakistan