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1. (Zoology) any of the microscopic organisms, such as protozoans and rotifers, found in infusions of organic material
2. (Zoology) any member of the subclass Ciliata. See ciliate3
(Zoology) of or relating to infusorians
[C18: from New Latin Infusoria former class name; see infuse]
ˌinfuˈsorial adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˌɪn fyʊˈsɔr i ən, -ˈsoʊr-)

1. any of the Infusoria.
2. infusorial.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.infusorian - any member of the subclass Infusoriainfusorian - any member of the subclass Infusoria
ciliate, ciliated protozoan, ciliophoran - a protozoan with a microscopic appendage extending from the surface of the cell
Infusoria, subclass Infusoria - in some recent classifications, coextensive with the Ciliata: minute organisms found in decomposing infusions of organic matter
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
can see, would it be to an infusorian animalcule--to an intestinal
During its early life history, live diets such as rotifers, infusorians, water fleas (Moina sp.) and mosquito larvae are mainly consumed.
Cultures were made in camera of incubation in conditions controlled with average differentials (seaweed and infusorians).