单词 aporobranchian 释义 aporobranchian, a. and n. Zool.|prbrkn|[f. mod.L. Aporobranchia (f. Gr. ἀ priv. + - passage, pore + ά- gills) + -an.]A. adj. Having no apparent respiratory tubes. B. n. Arachnids or Spiders so distinguished, otherwise called Po...