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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.

as, a prominent character. Prominent' moth (Zoöl.), any moth of the family Notodontidæ; a notodontian; -- so called because the larva has a hump or prominence on its back. Several of the species are injurious to fruit trees.

Any notodontian.

nicorn. -- Unicorn fish, Unicorn whale (Zoöl.), the narwhal. -- Unicorn moth (Zoöl.), a notodontian moth (Coelodasys unicornis) whose caterpillar has a prominent horn on its back; -- called also unicorn prominent. -- Unicorn root (Bot.), a name of two North American plants, the yellow-flowered colicroot (Aletris far…