Designating or having a respiratory system in which only the most posterior abdominal pair of spiracles is functional.
Late 19th century. From meta- + -pneustic, after German metapneustisch.
英汉双解词典包含464360条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。