Dictionary.net

• One of the rotifera.

1914 - Nuttall's Standard dictionary of the English language
By Nuttall, P.Austin.

• One of the rotifera, a lcass of infusorial animals - called also wheel animalcules-see rotatories, under rotate.

1874 - Etymological and pronouncing dictionary of the English language
By Stormonth, James, Phelp, P. H.