epiopticon
see medulla.

Online Dictionary of Invertebrate Zoology. . 2005.

Look at other dictionaries:

  • medulla — n. [L. medulla, marrow, pith] 1. Central portion of an organ. 2. (ARTHROPODA) Apical lobes of the brain; the central synaptic region; epiopticon; medulla externa; external medullary mass …   Dictionary of invertebrate zoology

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