- 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
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for spirula
The latter is partly straight and partly convoluted, nearly as in Spirula.A Manual of Elementary Geology
They originate at the aboral extremity where they remain in Spirula (fig. 18).
A series of Chambers joining each other, as in Nautilus, Spirula, &c.A Conchological Manual
George Brettingham Sowerby
The E. spirula of certain Brazilian monkeys and of the Barbary ape bears a strong resemblance to the species from the hog.Parasites
T. Spencer Cobbold
In places in New Zealand, and elsewhere, large fossil deposits of Spirula peroni occur.Beautiful Shells of New Zealand
E. G. B. Moss
- a tropical cephalopod mollusc, Spirula peronii, having prominent eyes, short arms, and a small flattened spirally coiled internal shell: order Decapoda (cuttlefish and squids)
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 Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012