Oscillaria
Pronunciation : Os`cil*la"ri*a
Part of Speech : n.
Etymology : [NL., fr. L. oscillare to swing.] (Bot.)
Definition : Defn: A genus of dark green, or purplish black, filamentous, fresh- water alg?, the threads of which have an automatic swaying or crawling motion. Called also Oscillatoria.
Source : Webster's Unabridged Dictionary, 1913