Ganoin (Noun)
Meaning
Shiny substance that resemble enamel and is secreted by the corium of certain fishes (especially ganoid fishes) and composes the outer layer of their scales.
Classification
Nouns denoting animals.
Examples
- The ganoin on the scales of the ancient sturgeon caught the light, giving them an iridescent sheen.
- Ganoin is made up of mainly organic materials and covers the scales of certain ancient fish.
- In ganoid fish species the ganoin covers the cosmoid and is the visible shiny layer.
- Cleaning an ancient fish fossil's scales revealed a remaining layer of ganoin underneath.
- In many ganoid fish the ganoin forms the hard outer layer on their scales that reduces drag.