free-swimming mostly freshwater flatworms; popular in laboratory studies for the ability to regenerate lost parts
例句
Any of various parasitic and nonparasitic worms of the phylum Platyhelminthes, such as a tapeworm or a planarian, characteristically having a soft, flat, bilaterally symmetrical body and no body cavity. 扁虫扁形动物门的寄生或非寄生虫中的任一种，以具有柔软、扁平且两面对称的身体和无体腔为特征，如绦虫或涡虫
Any of various parasitic and nonparasitic worms of the phylum Platyhelminthes,such as a tapeworm or a planarian,characteristically having a soft,flat,bilaterally symmetrical body and no body cavity. 扁虫扁形动物门的寄生或非寄生虫中的任一种，以具有柔软、扁平且两面对称的身体和无体腔为特征，如绦虫或涡虫。
An Improved Method for Chromosome Preparation of Freshwater Planarian 淡水涡虫染色体的制备方法
A brief introduction of research on chromosomes of freshwater planarian 淡水涡虫的染色体研究概述
Keywords Dugesia japonica（planarian）;heavy metal ion;acute toxicity; 东亚三角头涡虫;重金属离子;急性毒性作用;
