Meaning of spirula

spir•u•la

Pronunciation: (spir'yu-lu, -oo-lu), [key]
— pl. -lae
  1. any cephalopod of the genus Spirula, having a flat, spiral shell that is partly inside and partly outside the posterior part of the body.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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