请输入您要查询的英文单词:

 

单词 triploblastic
释义

Definition of triploblastic in English:

triploblastic

adjectiveˌtrɪplə(ʊ)ˈblastɪkˌtriplōˈblastik
Zoology
  • Having a body derived from three embryonic cell layers (ectoderm, mesoderm, and endoderm), as in all multicellular animals except sponges and coelenterates.

    〔动〕三胚层的

    Example sentencesExamples
    • Compartmentalization is also the underlying advantage epithelia provide in triploblastic descendants of a diploblastic ancestor.
    • The simplest animals that are bilaterally symmetrical and triploblastic (composed of three fundamental cell layers) are the Platyhelminthes, the flatworms.
    • The transition from diploblastic to triploblastic body plans hinges on the origin of mesoderm.
    • Common larval types are used to deduce a radially symmetrical, medusa-like organism as the common ancestor for all animal groups above coelenterates, i.e., for all triploblastic animals.
    • All bilaterians are triploblastic, which means they develop three germ layers during embryonic development.

Origin

Late 19th century: from Greek triploos 'threefold' + -blast + -ic.

Definition of triploblastic in US English:

triploblastic

adjectiveˌtriplōˈblastik
Zoology
  • Having a body derived from three embryonic cell layers (ectoderm, mesoderm, and endoderm), as in all multicellular animals except sponges and coelenterates.

    〔动〕三胚层的

    Example sentencesExamples
    • Compartmentalization is also the underlying advantage epithelia provide in triploblastic descendants of a diploblastic ancestor.
    • Common larval types are used to deduce a radially symmetrical, medusa-like organism as the common ancestor for all animal groups above coelenterates, i.e., for all triploblastic animals.
    • All bilaterians are triploblastic, which means they develop three germ layers during embryonic development.
    • The simplest animals that are bilaterally symmetrical and triploblastic (composed of three fundamental cell layers) are the Platyhelminthes, the flatworms.
    • The transition from diploblastic to triploblastic body plans hinges on the origin of mesoderm.

Origin

Late 19th century: from Greek triploos ‘threefold’ + -blast + -ic.

随便看

 

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。

 

Copyright © 2004-2022 Newdu.com All Rights Reserved
更新时间:2024/11/10 0:26:32