A depression resembling or likened to the umbilicus. Conchology. The central depression formed by the inner whorls of a gastropod shell; = umbilicus…
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| 释义 | the world > life > biology > physical aspects or shapes > indentation or cavity > [noun] (100) navel1681 A depression resembling or likened to the umbilicus. Conchology. The central depression formed by the inner whorls of a gastropod shell; = umbilicus… Subcategories:— notch or indentation (8) — depression or cavity (65) — opening or hole (13) — groove or furrow (13) |
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