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
