| 单词 | unio pearl |
| 释义 | > as lemmasUnio pearl Unio pearl n. a pearl produced by a freshwater mussel. ΚΠ 1885 Proc. 33rd Meeting Amer. Assoc. Advancem. Sci. 668 Unio pearls have often been found in the mounds of the Ohio Valley and the South. 1913 W. J. Dakin Perls 14 The Romans came to Britain for the Unio pearls and there is some evidence to show that they fished the Welsh rivers for them. 1989 Gems & Gemol. 25 37/1 The ‘modern’ discovery of Unio pearls in American waters was in Paterson, New Jersey. < as lemmas |
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