网站首页  词典首页

请输入您要查询的词汇:

 

词汇 tusk shell
释义

Definition of tusk shell in English:

tusk shell

noun
  • A burrowing mollusc with a slender tusk-shaped shell, which is open at both ends and typically white, and a three-lobed foot.

    角贝

    Class Scaphopoda, in particular the genus Dentalium

    Example sentencesExamples
    • There are approximately 900 species of Scaphopoda, commonly called tusk shells.
    • The nervous system of mollusks varies greatly from group to group; the clams and tusk shells have very simple nervous systems, while the squids, octopuses and some other mollusks have concentrated complex nerve centers and eyes equivalent to vertebrates.
    • The phylum Mollusca also ‘includes lesser known forms such as the chitons, tusk shells, and solenogasters, among others’.
    • The Scaphopoda are a distinctive group of molluscs commonly known as the ‘tusk shells’ because their shells are conical and slightly curved to the dorsal side, making the shells look like tiny tusks.
    • In bivalves, chitons, tusk shells and some snails, sperm and eggs are released into the water and fertilisation is external.

Definition of tusk shell in US English:

tusk shell

noun
  • another term for tooth shell
    Example sentencesExamples
    • In bivalves, chitons, tusk shells and some snails, sperm and eggs are released into the water and fertilisation is external.
    • The Scaphopoda are a distinctive group of molluscs commonly known as the ‘tusk shells’ because their shells are conical and slightly curved to the dorsal side, making the shells look like tiny tusks.
    • The nervous system of mollusks varies greatly from group to group; the clams and tusk shells have very simple nervous systems, while the squids, octopuses and some other mollusks have concentrated complex nerve centers and eyes equivalent to vertebrates.
    • There are approximately 900 species of Scaphopoda, commonly called tusk shells.
    • The phylum Mollusca also ‘includes lesser known forms such as the chitons, tusk shells, and solenogasters, among others’.
随便看

 

春雷网英语在线翻译词典收录了464360条英语词汇在线翻译词条,基本涵盖了全部常用英语词汇的中英文双语翻译及用法,是英语学习的有利工具。

 

Copyright © 2000-2024 Sndmkt.com All Rights Reserved 更新时间:2025/4/4 16:19:26