| 单词 | urochord |
| 释义 | urochord (once / 2954828 pages) n WORD FAMILY urochord USAGE EXAMPLESIn this state the larva has a urochord and certain other structures resembling some embryonic vertebrates. Project Gutenberg, The Gutenberg Webster's Unabridged...(2010) 1n primitive marine animal having a saclike unsegmented body and a urochord that is conspicuous in the larva Syn|Hypo|Hyper tunicate, urochordate ascidian minute sedentary marine invertebrate having a saclike body with siphons through which water enters and leaves salp, salpaminute floating marine tunicate having a transparent body with an opening at each end doliolumfree-swimming oceanic tunicate with a barrel-shaped transparent body larvaceanany member of the class Larvacea appendiculariafree-swimming tadpole-shaped pelagic tunicate resembling larvae of other tunicates sea squirtascidian that can contract its body and eject streams of water chordate any animal of the phylum Chordata having a notochord or spinal column 2n a notochord of a larval tunicate typically confined to the caudal region Hyper notochord a flexible rodlike structure that forms the supporting axis of the body in the lowest chordates and lowest vertebrates and in embryos of higher vertebrates |
| 随便看 |
|
英语词典包含147318条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。