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Notodontian
Notodontian No`to*don"tian, n. [Gr. ? the back + ?, ? a
tooth.] (Zo["o]l.)
Any one of several species of bombycid moths belonging to
Notodonta, Nerice, and allied genera. The caterpillar of
these moths has a hump, or spine, on its back.
Meaning of Notodontian from wikipedia