infusorians

infusorians
a general term for a variety of small aquatic organisms cultured and fed to small fish fry in aquaria. Vegetable matter, such as a crushed lettuce leaf, is left in a jar of water in a sunny spot. Once this jar of water becomes cloudy with infusorians, small quantities can be added to the aquarium

Dictionary of ichthyology. 2009.

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  • infusorians — in·fu so·ri·an || ‚ɪnfjuːzɔːrɪən n. single celled organism which belongs to the Infusoria (Zoology) adj. of the Infusoria, pertaining to a class of class of one celled organisms (Zoology) …   English contemporary dictionary

  • negative phototaxis — Phototaxis Pho to*tax is, Phototaxy Pho to*tax y, n. [NL. phototaxis; photo + Gr. ? an arranging.] (Biol.) The influence of light on the movements of low organisms, as various infusorians, the zo[ o]spores of certain alg[ae], etc.; also, the… …   The Collaborative International Dictionary of English

  • Phototactic — Phototaxis Pho to*tax is, Phototaxy Pho to*tax y, n. [NL. phototaxis; photo + Gr. ? an arranging.] (Biol.) The influence of light on the movements of low organisms, as various infusorians, the zo[ o]spores of certain alg[ae], etc.; also, the… …   The Collaborative International Dictionary of English

  • Phototactically — Phototaxis Pho to*tax is, Phototaxy Pho to*tax y, n. [NL. phototaxis; photo + Gr. ? an arranging.] (Biol.) The influence of light on the movements of low organisms, as various infusorians, the zo[ o]spores of certain alg[ae], etc.; also, the… …   The Collaborative International Dictionary of English

  • Phototaxis — Pho to*tax is, Phototaxy Pho to*tax y, n. [NL. phototaxis; photo + Gr. ? an arranging.] (Biol.) The influence of light on the movements of low organisms, as various infusorians, the zo[ o]spores of certain alg[ae], etc.; also, the tendency to… …   The Collaborative International Dictionary of English

  • Phototaxy — Phototaxis Pho to*tax is, Phototaxy Pho to*tax y, n. [NL. phototaxis; photo + Gr. ? an arranging.] (Biol.) The influence of light on the movements of low organisms, as various infusorians, the zo[ o]spores of certain alg[ae], etc.; also, the… …   The Collaborative International Dictionary of English

  • positive phototaxis — Phototaxis Pho to*tax is, Phototaxy Pho to*tax y, n. [NL. phototaxis; photo + Gr. ? an arranging.] (Biol.) The influence of light on the movements of low organisms, as various infusorians, the zo[ o]spores of certain alg[ae], etc.; also, the… …   The Collaborative International Dictionary of English

  • infusorial — /in fyoo sawr ee euhl, sohr /, adj. pertaining to, containing, or consisting of infusorians: infusorial earth. [1840 50; INFUSORI(A) + AL1] * * * …   Universalium

  • Lamarck, Jean-Baptiste — ▪ French biologist Introduction in full  Jean Baptiste Pierre Antoine de Monet, chevalier de Lamarck  born Aug. 1, 1744, Bazentin le Petit, Picardy, France died Dec. 18, 1829, Paris  pioneer French biologist who is best known for his idea that… …   Universalium

  • Biology — • The science on life and living organisms Catholic Encyclopedia. Kevin Knight. 2006. Biology     Biology     † …   Catholic encyclopedia

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