A taxonomic phylum in the kingdom Animalia — many small sessile aquatic creatures having a crown of tentacles surrounding a mouth and anal area.
noun-plural:
a small grouping of Bryozoa in which the anal area is within the circle of tentacles. See pedicellina.
others:
One of two divisions of Polyzoa established by Nitsche (others being Ectoprocta), including those Polyzoa where rectum opens up within the circlet of tentacles of lophophore.
How would you define Entoprocta?