planorbulineadj.
/pləˈnɔːbjᵿlʌɪn/, /pləˈnɔːbjᵿlᵻn/, U.S. /pləˈnɔrbjələn/, /pləˈnɔrbjəˌlaɪn/ Zoology.
Of, belonging to, or associated with the genus Planorbulina of marine foraminiferans having shells in the form of a rounded plane spiral.
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the world > animals > invertebrates > protozoa > class Sarcodina > order Rhizopoda > [adjective] > relating to Foraminifera > of or belonging to genus Planorbulina
planorbuline1865
1865 Philos. Trans. (Royal Soc.) 155 365 In fact, Globigerina and its varieties form an interesting group, which may be regarded as central to the Planorbuline and Discorbine species and their varieties.
1879 Encycl. Brit. IX. 380/1 Remarkable modifications of the planorbuline type.
1915 Philos. Trans. (Royal Soc.) B. 206 257 Typically C. poeyi of the most highly lobulate type, occurring side by side with the broad Planorbuline, and the neat Discorbine, types.
This entry has been updated (OED Third Edition, June 2006; most recently modified version published online March 2022).
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adj.1865- to go slumming
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