| 单词 | vertebrates |
| 释义 | DEFINITIVE EXAMPLES 权威例句〔amniote〕Any of a group of vertebrates that have an amnion during embryonic development, including reptiles, birds, and mammals.脊椎动物，羊膜动物：任一种在胚胎发育期间有羊膜的脊椎动物，包括爬行动物、鸟类和哺乳动物美国传统〔belly〕The underside of the body of certain vertebrates, such as snakes and fish.腹部：某些脊椎动物身体的下部，如蛇和鱼美国传统〔bird〕Any of the class Aves of warm-blooded, egg-laying, feathered vertebrates with forelimbs modified to form wings.鸟，禽：一种鸟纲温血、卵生、有羽毛的脊椎动物，前肢演变形成翅膀美国传统〔blood〕A functionally similar fluid in animals other than vertebrates.生命液：除脊椎动物以外的其他动物体内功能相当于血液的体液美国传统〔clavicle〕One of the bones of the pectoral girdle in many vertebrates.胸带骨：许多脊椎动物的胸带骨中的一块美国传统〔cloaca〕The common cavity into which the intestinal, genital, and urinary tracts open in vertebrates such as fish, reptiles, birds, and some primitive mammals.泄殖腔：脊椎动物（如鱼、爬行动物、鸟和某些低级哺乳动物）的肠道、生殖道和泌尿道口通往的共用体腔美国传统〔coliform〕Of or relating to the bacilli that commonly inhabit the intestines of human beings and other vertebrates, especially the colon bacillus.大肠杆菌的：寄生在人类和其他脊椎动物的直肠中的细菌的或与之相关的，尤其是结肠菌美国传统〔coracoid〕A beak-shaped bone articulating with the scapula and sternum in most lower vertebrates, such as birds and reptiles.喙突：大多数低等脊椎动物（如鸟类和爬行动物）的一块喙状骨头，有关节与肩板及胸骨相连美国传统〔creatine kinase〕An enzyme present in muscle, brain, and other tissues of vertebrates that catalyzes the reversible conversion of ADP and phosphocreatine into ATP and creatine.肌酸激酶：一种存在于脊椎动物的肌肉、脑髓以及其它组织中的酶，对二磷酸腺苷、磷酸肌酸和三磷酸腺苷、肌酸之间的可逆转换能起催化作用美国传统〔cyclostome〕Any of various primitive eellike vertebrates of the class Agnatha, such as a lamprey, lacking jaws and true teeth and having a circular, sucking mouth.圆口纲脊椎动物：一种类似鳗鱼的无颚纲原始脊椎动物，如盲鳗，没有下颚和真正的牙齿，而长着圆形吮吸的嘴美国传统〔digit〕A corresponding part in other vertebrates.手指，足趾：其它脊椎动物相对应的部位美国传统〔ectoderm〕The outermost of the three primary germ layers of an embryo, from which the epidermis, nervous tissue, and, in vertebrates, sense organs develop.外胚层：胚胎最初三层胚层中的最外一层，由此发育成为表皮、神经组织和脊椎动物的感觉器官美国传统〔endoskeleton〕An internal supporting skeleton, derived from the mesoderm, that is characteristic of vertebrates and certain invertebrates.骨骼：体内支撑的骨骼，由中胚层而来的，是脊椎动物及某些无脊椎动物所特有的特性美国传统〔epidermis〕The outer, protective, nonvascular layer of the skin of vertebrates, covering the dermis.表皮：脊椎动物真皮之外的一层无血管的保护性皮层美国传统〔fish〕Any of various primitive aquatic vertebrates of the class Cyclostomata, lacking jaws and including the lampreys and hagfishes.鳗类，鳗：无颚的各种原始水生圆口纲脊椎动物中的一种，包括七鳃鳗和盲鳗美国传统〔hand〕A homologous or similar part in other animals, as the terminal part of the forelimb in certain vertebrates.类似手形的事物：别的动物身上与之相应的或类似的器官，比如某些截肢动物前肢的终端美国传统〔heel〕The corresponding part of the hind foot of other vertebrates.后肢蹄踵，蹄的后部：其它脊椎动物后腿相应的部位美国传统〔hindgut〕The caudal portion of the embryonic alimentary canal in vertebrates.后肠：脊椎动物的未发育全的消化道的尾部美国传统〔interclavicle〕A bone located in front of the sternum and between the clavicles in certain vertebrates, such as reptiles and amphibians.间锁骨：某些脊椎动物，如爬行动物和两栖动物，胸骨前和锁骨间的一块骨头美国传统〔jaw〕Either of two bony or cartilaginous structures that in most vertebrates form the framework of the mouth and hold the teeth.颚：大部分脊椎动物具有的支持牙齿的骨架，由两块大骨或软骨结构组成美国传统〔leg〕The part of the limb between the knee and foot in vertebrates.腿：脊椎动物四肢上位于膝盖和脚部之间的那部分美国传统〔maxilla〕A homologous bone of the skull in other vertebrates.其他脊椎动物头盖骨中的相应骨头美国传统〔meninx〕A membrane, especially one of the three membranes enclosing the brain and spinal cord in vertebrates.脑膜：一种膜，尤指覆盖脑子和脊椎中脊髓的三种细胞膜之一美国传统〔nephrostome〕The ciliated funnel-shaped inner opening of a nephridium into the coelom in some invertebrates and lower vertebrates.肾孔，肾口：一些无脊椎动物和低等椎动物体内通向体腔的肾管纤毛，漏斗形，内部开口美国传统〔notochord〕A similar structure in embryos of higher vertebrates, from which the spinal column develops.脊索：更为高等的脊椎动物胚胎中的类似结构，脊椎骨由此发育美国传统〔otolith〕One of many minute calcareous particles found in the inner ear of certain lower vertebrates and in the statocysts of many invertebrates.耳石：某些低等脊椎动物的内耳和许多无脊椎动物的平衡囊中的细小石灰质微粒美国传统〔ovary〕The usually paired female or hermaphroditic reproductive organ that produces ova and, in vertebrates, estrogen and progesterone.卵巢：通常成对的雌性或雌雄同体动物的生殖器官，产生卵细胞，脊椎动物的此类器官产生雌性激素和孕激素美国传统〔pectoral fin〕Either of the anterior pair of fins attached to the pectoral girdle of fishes, corresponding to the forelimbs of higher vertebrates.胸鳍：一对紧附于鱼的环状胸骨的前鳍且与更高等的脊椎动物的前肢相对应的任一个美国传统〔pelvic fin〕Either of a pair of lateral hind fins of fishes, attached to the pelvic girdle and corresponding to the hind limbs of higher vertebrates.腹鳍：附着于鱼的腰带上且对应于高等脊椎动物后肢的一对鱼的侧后鳍之一美国传统〔penis〕The male organ of copulation in higher vertebrates, homologous with the clitoris. In mammals, it also serves as the male organ of urinary excretion.阴茎：高等脊椎动物与阴蒂相对应在雄性哺乳动物里的雄性性交器官， 也作为排尿器官美国传统〔poxvirus〕Any of a group of DNA-containing viruses, including those that cause smallpox, cowpox, and other poxlike diseases in vertebrates.痘病毒：一组含脱氧核糖核酸的病毒，包括那些在脊椎动物中引起天花、牛痘以及其他类似疾病的病毒美国传统〔premaxilla〕Either of two bones located in front of and between the maxillary bones in the upper jaw of vertebrates.前颌骨：位于脊椎动物上颚的上颚骨之前和之间的两块骨头中的一块美国传统〔radius〕A similar bone in many vertebrates.桡骨：许多脊椎动物具有的类似的骨头美国传统〔rib〕A similar bone in most vertebrates.脊椎动物的类似部分：大多数脊椎动物中类似的骨头美国传统〔shank〕A corresponding part in other vertebrates.动物胫部：其它脊椎动物的相应部位美国传统〔skin〕The membranous tissue forming the external covering or integument of an animal and consisting in vertebrates of the epidermis and dermis.皮，皮肤：形成动物的外皮或覆盖物，并在背椎动物中形成表皮和真皮的膜状组织美国传统〔skull〕The bony or cartilaginous framework of the head of vertebrates, made up of the bones of the braincase and face; cranium.颅骨，头盖骨：脊椎动物头骨或软骨的框架，由脑骨和脸部的骨头组成；头盖骨美国传统〔splanchnopleure〕A layer of embryonic cells formed in vertebrates by association of part of the mesoderm with the endoderm and developing into the wall of the viscera.胚脏壁，脏腑层：通过中胚层和内胚层联结而形成的脊椎动物的胚胎细胞层，并发展成内脏美国传统〔spleen〕A homologous organ or tissue in other vertebrates.脾脏：其他脊椎动物的相似组织或器官美国传统〔squamosal〕Of or relating to the thin, platelike part of the human temporal bone or to a corresponding part in other vertebrates.鳞状骨的：人体内暂时性骨头上薄薄的盘状物或与之有关的，或者其他脊椎动物相应的类似特征的美国传统〔thorax〕A part in other vertebrates that corresponds to the human thorax.胸部：其它脊椎动物的身体上和人胸部相应的部位美国传统〔trochanter〕Any of several bony processes on the upper part of the femur of many vertebrates.转子：在许多脊椎动物的股骨上部生出的几个粗硬的突出和其中的任何一个美国传统〔turbinate〕Anatomy Of, relating to, or designating a small curved bone that extends horizontally along the lateral wall of the nasal passage in higher vertebrates.【解剖学】 鼻甲的：与一片沿高级脊椎动物腔侧壁水平延伸的小而弯曲的骨有关的美国传统〔ulna〕A corresponding bone in the forelimb of other vertebrates.其他脊椎动物的前肢上相应的骨头美国传统〔vertebrate〕Birds, fish, and reptiles are all vertebrates.鸟类、鱼类和爬行动物都是脊椎动物。剑桥高阶〔vertebrate〕Both groups share two attributes normally associated with vertebrates.两组都具有通常脊椎动物才具备的两个特征。柯林斯高阶〔vertebrate〕Of or characteristic of vertebrates or a vertebrate.脊椎动物的：脊椎动物的或有脊椎动物特征的美国传统〔vomer〕A thin flat bone forming the inferior and posterior part of the nasal septum and dividing the nostrils in most vertebrates.犁骨：形成鼻中隔膜下后部的一块薄而平的骨头，在大多数脊椎动物中分开鼻孔美国传统All vertebrates have a spinal column (=a line of bones down the centre of the back).所有的脊椎动物都有脊柱。剑桥国际Birds, fish, mammals, amphibians and reptiles are all vertebrates.鸟类、鱼类、哺乳动物、两栖和爬行动物都是脊椎动物。剑桥国际 |
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