| 单词 | nautilus |
| 释义 | nautilus /nawt"l euhs, not"-/, n. , pl. nautiluses, nautili /nawt"l uy', not"-/ for 1, 2. 1. Also called chambered nautilus, pearly nautilus. any cephalopod of the genus Nautilus, having a spiral, chambered shell with pearly septa. 2. See paper nautilus. 3. (cap.) the first nuclear-powered submarine launched by the U.S. Navy. [1595-1605; < L < Gk nautílos paper nautilus, lit., sailor, deriv. of naûs ship; the webbed dorsal arms of the paper nautilus were thought to have been used as sails] |
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