from the GNU version of the Collaborative International Dictionary of English
- n.pl. Same as foraminifera.
from The Century Dictionary and Cyclopedia
- A name proposed by Hertwig (1819) for the foraminifers, or those rhizopods which possess a skeleton, or which are invested by a chitinous test or covered by silicious or arenaceous particles: thus equivalent to and conterminous with Foraminifera.
Sorry, no etymologies found.
On the other hand, many cells attain a considerable size, and run occasionally to several inches in diameter, as do certain kinds of rhizopods among the unicellular protists (such as the radiolaria and thalamophora).