[spir-yuh-luh, -oo-luh] 
[-lee] . | any cephalopod of the genus Spirula, having a flat, spiral shell that is partly inside and partly outside the posterior part of the body. |
| spir·u·la (spĭr'yə-lə, spĭr'ə-) n. pl. spir·u·lae (-lē') A small cephalopod mollusk of the genus Spirula, having a spirally coiled, partitioned internal shell. [Late Latin spīrula, twisted cake, diminutive of Latin spīra, coil; see spire2.] |
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