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Infusoria   Listen
noun
Infusoria  n. pl.  (Zool.) One of the classes of Protozoa, including a large number of species, all of minute size. Formerly, the term was applied to any microbe found in infusions of decaying organic material, but the term is now applied more specifically to one of the classes of the phylum Ciliophora, of ciliated protozoans. Note: (From 1913 dictionary): They are found in all seas, lakes, ponds, and streams, as well as in infusions of organic matter exposed to the air. They are distinguished by having vibrating lashes or cilia, with which they obtain their food and swim about. They are devided into the orders Flagellata, Ciliata, and Tentaculifera. See these words in the Vocabulary. Formely the term Infusoria was applied to all microscopic organisms found in water, including many minute plants, belonging to the diatoms, as well as minute animals belonging to various classes, as the Rotifera, which are worms; and the Rhizopoda, which constitute a distinct class of Protozoa. Fossil Infusoria are mostly the siliceous shells of diatoms; sometimes they are siliceous skeletons of Radiolaria, or the calcareous shells of Foraminifera.






Collaborative International Dictionary of English 0.48








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"Infusoria" Quotes from Famous Books



... this witness—the consciousness—suffices to give objects a continuity of existence, we may content ourselves with a less important witness. Why a man? The eyes of a mollusc would suffice, or those of infusoria, or even of a particle of protoplasm: living matter would become a condition of the existence of dead matter. This, we must acknowledge, is a singular condition, and this conclusion condemns ...
— The Mind and the Brain - Being the Authorised Translation of L'me et le Corps • Alfred Binet

... mass of dead protein, however, take a particle of living protein—one of those minute microscopic living things which throng our pools, and are known as Infusoria—such a creature, for instance, as an Euglena, and place it in our vessel of water. It is a round mass provided with a long filament, and except in this peculiarity of shape, presents no appreciable physical or chemical difference whereby it might be distinguished ...
— Lay Sermons, Addresses and Reviews • Thomas Henry Huxley

... no work extant in which so much valuable information concerning Infusoria (Animalcules) can be found, and every Microscopist should add ...
— Notes and Queries, Number 217, December 24, 1853 • Various

... of the class Infusoria, so called because they were early found to be abundant in various infusions, are characterized by numerous fine cilia or hair-like organs by means of which the organism moves about and procures its food. The well-known "slipper animalcule" (Paramoecium) (Fig. 11), and the "bell-animalcule" ...
— Insects and Diseases - A Popular Account of the Way in Which Insects may Spread - or Cause some of our Common Diseases • Rennie W. Doane

... examination, laid an account of his inquiry before the Akademie der Wissenschaften, in May 1844, in which he shewed that the dust, so far from being inorganic, contained numerous specimens of a species of flint-shelled animalcules, or infusoria, known as polygastrica, and minute portions of terrestrial plants. The investigation led him to certain conclusions: '1. That meteoric dust-rain is of terrestrial origin. 2. That the same is not a rain of volcanic ashes. 3. That it is necessarily ...
— Chambers's Edinburgh Journal, No. 432 - Volume 17, New Series, April 10, 1852 • Various



Words linked to "Infusoria" :   Ciliophora, class, infusorian, subclass Infusoria, class Ciliata



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