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isopedin

American  
[ahy-sop-i-din, ahy-suh-peed-n] / aɪˈsɒp ɪ dɪn, ˌaɪ səˈpid n /
Also isopedine

noun

Ichthyology.
  1. the underlying layer of a ganoid scale, composed of connective tissue embedded with bone.


Etymology

Origin of isopedin

iso- + -pedin < Greek pedīnós level