'Phoronis' definitions:

Definition of 'Phoronis'

From: GCIDE

Phoronis \Pho*ro"nis\, n. [NL., fr. L. Phoronis, a surname of Io, Gr. ?.] (Zool.) A remarkable genus of marine worms having tentacles around the mouth. It is usually classed with the gephyreans. Its larva (Actinotrocha) undergoes a peculiar metamorphosis. [1913 Webster]