An alternative spelling of ganoine; the shiny, enamel-like substance that coats ganoid fish scales.
From Greek ganos (lustre, brightness) plus -in (a suffix forming nouns, especially chemical compounds). An older or variant form of the term ganoine.
Ganoin (or ganoine) is essentially nature's enamel paint—it's an organic coating so durable and lustrous that medieval and ancient peoples probably tried to copy it, not knowing it was a biological compound rather than a mineral.
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