Paramecium

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Paramecium

 [par″ah-me´she-um]
a genus of ciliate protozoa.

paramecium

 [par″ah-me´she-um]
any organism of the genus Paramecium.

Paramecium

(par'ă-mē'shē-ŭm, -sē-ŭm),
An abundant genus of freshwater holotrichous ciliates, characteristically slipper-shaped and often large enough to be visible to the naked eye; commonly used for genetic and other studies.
[G. paramēkēs, rather long, fr. mēkos, length]

Paramecium

/Par·a·me·ci·um/ (-me´se-um) a genus of ciliate protozoa.

paramecium

/par·a·me·ci·um/ (-me´se-um) pl. parame´cia   an organism of the genus Paramecium.

paramecium

(păr′ə-mē′sē-əm, -shē-əm)
n. pl. parame·cia (-sē-ə, -shē-ə) or parame·ciums
Any of various slipper-shaped freshwater ciliate protozoans of the genus Paramecium, having an oral groove for feeding.

Par·a·me·ci·um

(par'ă-mē'sē-ŭm)
An abundant genus of freshwater holotrichous ciliates, characteristically slipper shaped and often large enough to be visible to the naked eye; commonly used for genetic and other studies.
[G. paramēkēs, rather long, fr. mēkos, length]
Parameciumclick for a larger image
Fig. 245 Paramecium . General structure.

Paramecium

a genus of freshwater PROTOZOAN, having an oval body covered with cilia and a ventral ciliated groove for feeding.

Paramecium

a genus of ciliate protozoa.
References in periodicals archive ?
In addition, paramecia were observed in P-KCM to swim mostly downwards (data not shown).
Figure (5) shows that the percentage of paramecia response is dose dependent and proportional to increasing concentrations of both pesticides.
This will ensure that there is at least an inch of space between the water's surface and the top of the lid, to allow for adequate air exchange, since paramecia are aerobic organisms.
Prior investigations into the possibility of either instrumental or classical conditioning in paramecia have reported both positive and negative findings, with some serious questions later raised about the possible lack of proper controls in some of the studies.
A study of the genes underlying aging and consequent "programmed" death in the simplest unicellular eukaryotes, such as paramecia and yeast, all the way through human beings, shows that these genes are remarkably similar in every species.
Wayne walked in off the street and knocked, and Bradruff came out onto the splintery porch in his knobby bare feet, his shirt a washed-out paisley with cream-colored paramecia swimming through a burgundy background.
Protists (organisms like single-cell amoebas and paramecia, as well as seaweed, kelp, and other algae that make their own food)
Some of the fossils from Victoria Island are bacteria, but many represent larger, eukaryotic cells--the branch on the tree of life that harbors all animals, plants, fungi, and a vast microcosm of single-celled protists including amoebas and paramecia.
Beadnell, surely one of the more eccentric thinkers in this or any library, describes various tropisms (consider how plant roots reach into soil while the branches above seek light) and "tactisms" (the life-prolonging fusion of paramecia being my favorite example) to show that the urge within an organism to contact something other than itself is as old as evolution.
They found that paramecia streamed to cubes of agar which had picked up the attractants from contact with the strand ends.
Yet genetic material taken from the myxozoan's protein production unit, called the ribosome, indicates that this group's closest cousins are actually nematode worms, not paramecia, Spall and his colleagues report in the Sept.