• WordNet 3.6
    • n rhizopod protozoa characterized by a pseudopod
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Webster's Revised Unabridged Dictionary
    • n Rhizopod (Zoöl) One of the Rhizopoda.☞ The rhizopods belonging to the Radiolaria and Foraminifera have been of great geological importance, especially in the Cretaceous and Tertiary periods. Chalk is mostly made from the shells of Foraminifera. The nummulites are the principal ingredient of a limestone which is of great extent in Europe and Asia, and is the material of which some of the pyramids of Egypt are made. The shells are abundant in deepsea mud, and are mostly minute, seldom larger than a small grain of sand, except in the case of the nummulities, which are sometimes an inch in diameter.
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Century Dictionary and Cyclopedia
    • rhizopod Provided with pseudopods, as an animalcule: having processes of sarcode, as if roots, by means of which the animalcule is attached or moves; root-footed; specifically, of or pertaining to the Rhizopoda, in any sense. Also rhizopodous.
    • n rhizopod A member of the Rhizopoda, in any sense.
    • n rhizopod In botany, same as rhizopodium.
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Chambers's Twentieth Century Dictionary
    • n Rhizopod rī′zō-pod one of the Rhizop′oda, a division of the Protozoa, esp. a class with pseudopodia for locomotion and the ingestion of food
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Chambers's Twentieth Century Dictionary
Gr. rhiza, a root, pous, podos, a foot.


In literature:

For a long while they were believed to be living animals, like the rhizopods.
"Young Folks' Library, Volume XI (of 20)" by Various
On fresh-water Rhizopods of England and India.
"Marine Protozoa from Woods Hole" by Gary N. Calkins
As Darwin had studied and classified the Cirripedia, so would he write an essay on Rhizopods.
"Little Journeys to the Homes of the Great - Volume 12" by Elbert Hubbard
The beetling chalk cliffs of England were built by rhizopods, too small to be clearly seen without the aid of a magnifying-glass.
"Pushing to the Front" by Orison Swett Marden
These rhizopods suddenly drew in their hair-like cilia and sank to the bottom, to all appearances dead.
"The Dawn of Reason" by James Weir
The beetling chalk cliffs of England were built by rhizopods, too small to be clearly seen without the aid of a magnifying-glass.
"Architects of Fate" by Orison Swett Marden
With regard to the origin of the group, the probability is greatly in favour of a Rhizopod ancestry.
"Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 3" by Various
Rhizopods are the lowest creatures in the animal kingdom.
"Through a Microscope" by Samuel Wells
Myxomycetes (de Bary, 1859), Rhizopods (R. Hertwig, 1874), &c., the actual conversion of a pseudopodium into a flagellum can be witnessed.
"Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 8" by Various