Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
A group of small wormlike animals, having cilia on the ventralside. The group is regarded as an ancestral or synthetic one, relatedto rotifers and annelids.
Share your knowledge with the community
Browse our collection of 300,000+ community-written definitions
