spiralium

noun spi·ra·li·um \spīˈrālēəm\

Definition of spiralium

plural

spiralia

\-ēə\
  1. :  one of the spirally twisted ribbonlike calcareous supports on the interior of the valve of various extinct brachiopods

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Origin and Etymology of spiralium

New Latin, from Medieval Latin spiralis spiral + New Latin -ium


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a rounded knoll or a ridge of ice

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