The former subkingdom of animals (kingdom Animalia) that includes the coelenterates (Coelenterata) and Placozoa (a phylum of flat, amoeboid animals 2–3 mm in size). Members of the Radiata possess radial symmetry. The term is no longer accepted.
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。