Definition of Acanthodes
: a genus of small slender possibly degenerate fishes having generalized toothless jaws and a single small dorsal fin and found in the Carboniferous and Permian formations
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Origin and Etymology of acanthodes
New Latin, from Greek akanthōdēs thorny, spiny, from akanth- acanth- + -ōdēs -ode
First Known Use: 1834
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