agnathan

名词 n. 形容词 adj.
中文释义
发音 ăgʹnə-thən

英文释义

名词 n.
  1. A member of the superclass Agnatha of jawless vertebrates.
    — Thus should the cranial neural crest in cyclostomes prove to be non-skeletogenous this might be a reflection either of its own primitiveness or of the different evolutionary origins and morphological status of the visceral skeleton in agnathans and gnathostomes.
形容词 adj.
  1. Belonging or pertaining to the superclass Agnatha, the jawless vertebrates. not-comparable
    — Haikouichthys is one of three species of jawless (or agnathan) fish to be found in the Early Cambrian period.

词形变化

agnathans plural

词源

词源 1
From Agnatha, from Ancient Greek ἀ- (a-, “without”) + γνάθος (gnáthos, “jaw”).
词源 2
From Agnatha, from Ancient Greek ἀ- (a-, “without”) + γνάθος (gnáthos, “jaw”).
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