Vocab Bloom Hub

agnathan

/ˈæɡ.nə.θən/

翻译: 无颌类,指没有上下颌和成对附肢的原始脊椎动物,包括现生的圆口类(盲鳗和七鳃鳗)以及多种已灭绝的化石类群。

1 个条目

词语关系

noun

/ˈæɡ.nə.θən/C2formalscientific
  • zh无颌类,指没有上下颌和成对附肢的原始脊椎动物,包括现生的圆口类(盲鳗和七鳃鳗)以及多种已灭绝的化石类群。

A noun referring to an eel-shaped vertebrate that lacks jaws and paired appendages, including cyclostomes and certain extinct forms.

  1. Jawless fishC2formalscientific

    An eel-shaped vertebrate without jaws or paired appendages, including the cyclostomes and some extinct forms.

    zh无颌鱼

    • Agnathans are considered the most primitive living vertebrates.
    • Lampreys and hagfish are the only surviving agnathans.
    • Fossil records show that agnathans were abundant in the Ordovician period.

    同义词cyclostomejawless fishostracoderm

    反义词gnathostome

词形
  • agnathans plural form
  • agnathans' possessive plural form
  • agnathan's possessive singular form
Vocab Bloom Hub English dataset · 0.3.1

继承条款

Vocabulary data from the Vocab Bloom Hub English dataset (CC BY 4.0), https://huggingface.co/datasets/Fristail27/vocab-bloom-hub-en

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Generated by language models and not human-verified: definitions, examples, levels and translations may contain errors.