| n. | 1. | (Zool.) A gallinule (Notornis Mantelli) formerly inhabiting New Zealand, but now supposed to be extinct. It was incapable of flight. See Notornis. |
| 1. | (Geol.) The boundary between the earth's crust and the semiliquid mantle beneath. It varies in depth from 3 miles beneath the surface at certain points in the ocean to over 25 miles under certain parts of continents. |
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