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[spir-yuh-luh, -oo-luh] /ˈspɪr yə lə, -ʊ lə/
noun, plural spirulae
[spir-yuh-lee, -oo-lee] /ˈspɪr yəˌli, -ʊˌli/ (Show IPA)
any cephalopod of the genus Spirula, having a flat, spiral shell that is partly inside and partly outside the posterior part of the body.
Origin of spirula
1825-35; < New Latin; Late Latin spīrula twisted cake. See spira, -ule Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for spirula


a tropical cephalopod mollusc, Spirula peronii, having prominent eyes, short arms, and a small flattened spirally coiled internal shell: order Decapoda (cuttlefish and squids)
Word Origin
C19: via New Latin from Late Latin: a small twisted cake, from Latin spīra a coil
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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