The Collaborative International Dictionary of English v.0.48:

Miliola \Mil"i*o`la\, n. [NL., dim. of L. milium millet. So
   named from its resemblance to millet seed.] (Zool.)
   A genus of Foraminifera, having a porcelanous shell with
   several longitudinal chambers.
   [1913 Webster]