Definition of conferva
1
capitalized, in some especially former classifications
:a genus of filamentous green algae containing a number of species of doubtful relationship many of which are now usually placed in the genus Tribonema
2
plural confervae\-(ˌ)vē\
:an alga of the genus Tribonema;
broadly
:any of various filamentous algae that form scums in still or sluggish fresh water
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