ganoin

ganoin

[gan-oh-in]
noun Ichthyology.
a hard, shiny, enamellike substance secreted by the corium, composing the outer layer of the scales of certain fishes.
Also, ganoine.


Origin:
1855–60; gano(id) + -in2

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ganoin

noun
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 
WordNet® 3.0, © 2006 by Princeton University.
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