Orbulina

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Orbulina \Or`bu*li"na\, prop. n. [NL., dim. of L. orbis orb.]
     (Zool.)
     A genus of minute living {Foraminifera} having a globular
     shell.
     [1913 Webster] orb weaver