蚖虫 (蚖蟲) yuánchóng
          
              yuánchóng 
              
              noun 
              Protura 
              Domain: Modern Chinese 现代汉语
              
                , Subdomain: Biology 
              
              
                , Concept:  
              
              
              
                Notes: A soil dwelling primitive hexapod (CC-CEDICT '蚖蟲')