from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A pseudopod.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. pseudopod
from the GNU version of the Collaborative International Dictionary of English
- n. Same as pseudopod.
from The Century Dictionary and Cyclopedia
- n. In Protozoa, as pseudopods, rhizopods, or myxopods, a temporary diversiform prolongation or protrusion of the sarcode or body-substance of the animalcule, to any extent or in any shape, capable of being withdrawn or reabsorbed into the general mass of the body, and serving as an organ of locomotion, prehension, or ingestion; a pseudopod, or false foot: generally in the plural.
- n. In Rotifera, the aboral region, caudal extremity, or tail-end of a wheel-animalcule.
- n. In botany: In Musci, a false pedicel, or elongation of the extremity of a branch of the oöphyte, in the form of a stalk, supporting a sporogonium or capsule.
- n. In Mycetozoa, a protrusion of the protoplasm of an amœboid body, which may be drawn in, or into which the whole body may move.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. temporary outgrowth used by some microorganisms as an organ of feeding or locomotion
Sorry, no etymologies found.
There is no distinct seta, but the capsule is raised on a leafless outgrowth of the end of the branch called a pseudopodium (C, qs).
Ray Davis at pseudopodium likened them to elaborations of Wes Craven's early movies and other like-minded 70s flicks, and I think he's about right.
The upper portion of the archegonial wall is carried up as a calyptra on the sporogonium, which, as in _Sphagnum_, has no seta and is raised on a pseudopodium.
B. Longitudinal section of the sporogonium borne on the pseudopodium (ps);
If one watches an amoeba under the microscope he may see it move about the field, creeping along the surface of the glass plate; throwing out a pseudopodium here; invaginating a mouth or stomach there; taking in and digesting minute plant organisms; transporting itself across the field of the microscope through the aid of improvised locomotory organs.
The amoeba shrinks into itself at a touch, withdraws the pseudopodium that is roughly handled, or makes its way round the small object which will serve it as food.
To be sure, some noisy ones went on shouting for revolution the very next day -- men, who had been talking formulas for twenty or thirty years, and had no more notion of a fact than they had of a pseudopodium.
In locomotion the corpuscle pushes out a process of its substancea pseudopodium, as it is calledand then shifts the rest of the body into it.
In the same way when any granule or particle comes in its way the corpuscle wraps a pseudopodium around it, and then withdraws the pseudopodium with the contained particle into its own substance.
A very small form, first seen in the flagellated stage, aroused my interest by reason of the fact that its flagellum lost its regular outline and became amoeboid, turning to a pseudopodium, while at the same time other pseudopodia were protruded from different parts of the periphery.