miracidia is miracidium's Plural Form

miracidium

US [maɪ'rækɪdɪr]
UK [maɪ'rækɪdɪə]
  • n.毛蚴;纤毛幼虫
  • Web孵化成纤毛幼虫;孵化过的纤毛幼虫;孵化出毛蚴
Plural Form:miracidia  
n.
1.
毛蚴
2.
纤毛幼虫