- a genus of green freshwater protozoans having a reddish eyespot and a single flagellum, found especially in stagnant waters.
Origin of Euglena
1895–1900; < New Latin < Greek eu- eu- + glḗnē the pupil, eyeball, socket of a joint
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Examples from the Web for euglena
Of the first group, Euglena (Fig. 9), may be selected as a type.Elements of Structural and Systematic Botany
Douglas Houghton Campbell
Many of these minute plants develop locomotion and a degree of sensitiveness (Diatoms, Peridinea, Euglena, etc.).The Story of Evolution
The principal species are the Euglena viridis and the Euglena pyrum.
In this way Engelmann was able to determine the evolution of oxygen by Euglena and by chlorophyl granules.
Among unicellular green alg, Chlamydomonas, has its maximal efficiency in the yellowish-green and Euglena in the blue.The Organism as a Whole
- any freshwater unicellular organism of the genus Euglena, moving by means of flagella and typically having holophytic nutrition. It has been variously regarded as an alga or a protozoan but is now usually classified as a protoctist (phylum Euglenophyta)
C19: from New Latin, from eu- + Greek glēnē eyeball, socket of a joint
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
- Any of various unicellular protist organisms of the genus Euglena that live in fresh water, have a cylindrical or sausage-like shape, and move by means of a flagellum. Euglenas contain chloroplasts and can produce their own food by photosynthesis. They can also absorb nutrients directly into the cell from the environment. Euglenas have no rigid covering or cell wall, such as the cellulose cell walls of green algae or plants, over the membrane enclosing the plasma of their cells. They also have a reddish, light-sensitive eyespot which helps them navigate in relation to light sources. In warm weather, euglenas multiply rapidly and form scum on the surfaces of bodies of water.
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