Spatangina
plural noun
Spat·an·gi·na
\ˌspatənˈjīnə, -jēnə\
Definition of Spatangina
: a suborder of sea urchins (order Exocyloida) comprising numerous more or less flattened approximately heart-shaped sea urchins that exhibit considerable secondary bilateral symmetry — compare clypeastrina
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Origin and Etymology of spatangina
New Latin, from Spatangus + -ina
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