Euglena noun. [ju:'gli:nǝ] M19.
[mod. Latin (see below), from EU- + Greek glēnē eyeball, socket of joint.]
A single-celled freshwater flagellate of the genus Euglena (variously classed as a protozoan and an alga), which can form a green scum on stagnant water.

■ euglenoid noun & adjective (a) noun a flagellate of the order containing Euglena, comprising mostly green or colourless organisms with one or two flagella and a gullet reservoir; (b) adjective resembling or characteristic of Euglena or a euglenoid (

■ euglenoid movement, a rhythmical movement in which waves of expansion and contraction pass along the body): L19.

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