Definition of Orbitolina
:a genus of foraminiferans very abundant in the Cretaceous having a bowl-shaped or depressed conic siliceous test with agglutinated sandy particles
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Orbitolina
noun
Or·bi·to·li·na
\
-lēnə
\
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Origin and Etymology of orbitolina
New Latin, from Orbitolites + -ina
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