| 单词 | Pleurotomaria | 
| 释义 | Pleurotomarianoun  Pleu·ro·to·mar·ia    ˌplu̇rətəˈma(a)rēə     : a large genus of nearly extinct two-gilled gastropods (suborder Rhipidoglossa) usually having a trochiform nacreous shell with a broad sinus in the outer margin of the last whorl that extends back around the whorls as a raised band    pleurotomariid   ¦⸗⸗⸗¦ma(a)rēə̇d   pleurotomarioid   -ēˌȯid   | 
	
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