Describing any bilaterally symmetrical animal of the group Metazoa that does not possess a coelom (see also body cavity). Examples of acoelomate animals are the flatworms.
科学参考收录了60776条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。