Definitions
from The Century Dictionary.
- A class of worms, or an order of flatworms, characterized by the ciliation of the body, by means of which they set up little currents or vortices of water; the whirl-worms.
from the GNU version of the Collaborative International Dictionary of English.
- noun plural (Zoöl.) An extensive group of worms which have the body covered externally with vibrating cilia. It includes the Rhabdocœla and Dendrocœla. Formerly, the nemerteans were also included in this group.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun zoology Any member of
Turbellaria ; aflatworm .
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun free-living flatworms
Etymologies
from Wiktionary, Creative Commons Attribution/Share-Alike License
From the taxonomic name.
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Examples
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The latter appear first (as a pair of excretory tubes) in the platodes (turbellaria), and have probably been inherited from these by the articulates (annelids) on the one hand and the unarticulated prochordonia on the other, and from these passed to the articulated vertebrates.
The Evolution of Man — Volume 1 Ernst Heinrich Philipp August Haeckel 1876
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a of a fish, b of a turbellaria worm (with two side-lashes), c to e of
The Evolution of Man — Volume 1 Ernst Heinrich Philipp August Haeckel 1876
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