glo·​big·​e·​ri·​na | \ (ˌ)glōˌbijəˈrīnə, -rēnə\

Definition of globigerina

1 capitalized : a genus (the type of the family Globigerinidae) of foraminifers having calcareous shells and living near the surface of the sea

2 plural globigerinae\ -​ī(ˌ)nē , -​ēˌnī \ also globigerinas

a : a foraminifer of the genus Globigerina
b : the shell of a globigerina

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History and Etymology for globigerina

New Latin, from globi- (from Latin globus ball) + ger- (from Latin gerere to carry, bear) + -ina

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