| 单词 | 无脊椎动物 |
| 释义 | 〔testis〕An analogous gland in an invertebrate animal, such as a hydra or a mollusk.睾丸：无脊椎动物如水螅或软体动物的类似腺体〔coelenterate〕Any of various invertebrate animals of the phylum Coelenterata, characterized by a radially symmetrical body with a saclike internal cavity, and including the jellyfishes, hydras, sea anemones, and corals.腔肠动物：一种腔肠动物门的无脊椎动物，特征是有囊状腔的辐射对称体，包括水母、水螅、海葵和珊瑚〔spermatheca〕A receptacle in the reproductive tracts of certain female invertebrates, especially insects, in which spermatozoa are received and stored until needed to fertilize the ova.受精囊：某些雌性无脊椎动物的生殖道中的容器，能接收并贮存精子直到需要用其给卵子受精时，尤指昆虫〔trochophore〕The small, free-swimming, ciliated aquatic larva of various invertebrates, including certain mollusks and annelids.担轮动虫：多种水生无脊椎动物，体型很小能自由游动的、有纤毛的幼虫，包括某些软体动物和环节动物的幼虫〔cloaca〕The posterior part of the intestinal tract in various invertebrates.泄殖腔：各种无脊椎动物内肠道的后部分〔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〔pogonophoran〕Any of various wormlike marine invertebrates of the phylum Pogonophora that grow in upright chitin tubes, usually at depths greater than 100 meters (330 feet), have tentacles attached to the head region, and lack a digestive system.须腕动物：须腕门中的一种蠕虫状海生无脊椎动物，生长在直立的甲壳质管中，通常在100米(330英尺）以下的水中生活，有附于头部的须毛，而缺少消化器官〔diploblastic〕Derived from two embryonic germ layers, the ectoderm and the endoderm. Used of lower invertebrates, such as sponges and coelenterates.双胚层的：具有两个胚层（外胚层和内胚层）的。用于低等无脊椎动物，如寄生虫和腔肠动物〔zooxanthella〕Any of various yellow-green algae that live symbiotically within the cells of other organisms, such as those of certain radiolarians and marine invertebrates.动物黄藻：与其它生物细胞共生的黄绿色海藻，如某些放射虫和海生无脊椎动物〔palp〕An elongated, often segmented appendage usually found near the mouth in invertebrate organisms such as mollusks, crustaceans, and insects, the functions of which may include sensation, locomotion, and feeding. Also called palpus 触须：细长的，通常为弓形的附属物，通常长在无脊椎动物器官的嘴附近，例如软体动物、甲壳纲动物和昆虫，其功能包括感觉、移动和喂食 也作 palpus〔eyespot〕A simple visual organ of certain invertebrates consisting of a sensory ending covered by light-sensitive, pigmented cells.眼点：某个无脊椎动物的一个简单的视觉器官，由覆盖着感光的色素细胞的感觉末梢组成〔echinoderm〕Any of numerous radially symmetrical marine invertebrates of the phylum Echinodermata, which includes the starfishes, sea urchins, and sea cucumbers, having an internal calcareous skeleton and often covered with spines.棘皮动物：棘皮动物门中各种的放射对称状海洋无脊椎动物，具有内骨架且通常有脊包覆外表，包括海星、海胆、海参等〔kidney〕An excretory organ of certain invertebrates.肾：某些无脊椎动物的排泄器官〔statocyst〕A small organ of balance in many invertebrates, consisting of a fluid-filled sac containing statoliths that stimulate sensory cells and help indicate position when the animal moves. Also called otocyst 平衡器：一种无脊椎动物的小平衡器官，由含有细胞浆质的流质囊组成，那些细胞浆质剌激感觉细胞在动物运动时帮助定位 也作 otocyst〔gregarine〕Any of various sporozoan protozoans of the order Gregarinida that are parasitic within the digestive tracts of various invertebrates including arthropods and annelids.簇虫：任一种簇虫孢子虫类的原生动物，寄生于各类无脊椎动物，包括节肢动物和环节动物的消化道内〔proboscis〕The slender, tubular feeding and sucking organ of certain invertebrates, such as insects, worms, and mollusks.喙：某些无脊椎动物，如昆虫、蠕虫和软体动物细长的管状进食和吮吸器官〔typhlosole〕A longitudinal fold of the intestinal wall in certain invertebrates and lower vertebrates that increases the absorptive and digestive surface area of the intestine.盲道：某些无脊椎动物成低等脊椎动物肠道壁的纵向折叠部分，增加了肠道吸收和消化的表面区域〔Paleozoic〕Of, belonging to, or designating the era of geologic time that includes the Cambrian, Ordovician, Silurian, Devonian, Mississippian, Pennsylvanian, and Permian periods and is characterized by the appearance of marine invertebrates, primitive fishes, land plants, and primitive reptiles. See table at geologic time 古生代的：地质时代的一个时期的，属于这个时期的或这么称呼的，包括寒武纪、奥陶纪、志留纪、泥盆纪、密西西比纪、宾夕法尼亚纪和二叠纪时期，并且以海洋无脊椎动物、原始鱼类、陆地植物和早期爬行动物的出现为特征 参见 geologic time〔ocellus〕A small simple eye, found in many invertebrates, usually consisting of a few sensory cells and a single lens.单眼：小而简单的眼，出现于多种无脊椎动物，通常含有一些感官细脆和单一眼睛水晶体〔lung〕A similar organ in some invertebrates, including spiders and terrestrial snails.呼吸器官：在某些无脊椎动物（包括蜘蛛和陆栖蜗牛）中相似的器官〔brachiopod〕Any of various marine invertebrates of the phylum Brachiopoda, having bivalve dorsal and ventral shells enclosing a pair of tentacled, armlike structures that are used to sweep minute food particles into the mouth. Also called lampshell 腕足动物：一种腕足动物属的海生无脊椎动物，具有双瓣的背甲和腹甲，其中包住一对手臂状的触手结构，用于将食物微料扫入口中 也作 lampshell〔ovoviviparous〕Producing eggs that hatch within the female's body without obtaining nourishment from it. Used of certain fishes and reptiles and many invertebrates.卵胎生的：不需从母体内吸取营养，在母体内产卵并发育。用于某些鱼类或爬行动物和许多无脊椎动物〔gizzard〕A similar digestive organ found in certain invertebrates, such as the earthworm.砂囊，胃，内脏：在一些的无脊椎动物身上有类似的消化器官，如蚯蚓〔invertebrate〕An animal, such as an insect or a mollusk, that lacks a backbone or spinal column.无脊椎动物：缺少脊骨或脊柱的动物，例如昆虫或软体动物〔spicule〕A small needlelike structure or part, such as one of the silicate or calcium carbonate processes supporting the soft tissue of certain invertebrates, especially sponges.小针突：针状小结构或部分，例如碳酸硅或碳酸盐突起，存在于某些无脊椎动物中用来支持软组织，尤其是海绵中〔toe〕The terminal segment of an invertebrate's limb.无脊椎动物肢体的末端〔tardigrade〕Any of various slow-moving, microscopic invertebrates of the phylum Tardigrada, related to the arthropods and having four body segments and eight legs and living in water or damp moss. Also called water bear 缓步类动物：任一种属于缓步类的行动缓慢、微小的无脊椎动物，它与节肢动物有亲缘关系，生有四个体节和八条腿，生活于水中或潮湿的苔藓上 也作 water bear〔spermary〕An organ or a gland in which male gametes are formed, especially in invertebrate animals.精巢，睾丸：尤指无脊椎动物形成雄性配子的器官或腺体〔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〔hemolymph〕The circulatory fluid of certain invertebrates, analogous to blood in arthropods and to lymph in other invertebrates.血淋巴：某些无脊椎动物的循环体液，在节肢动物中起血液作用，在另外一些无脊椎动物中起淋巴的作用〔worm〕Any of various invertebrates, as those of the phyla Annelida, Nematoda, Nemertea, or Platyhelminthes, having a long, flexible, rounded or flattened body, often without obvious appendages.虫：几种无脊椎动物中的一种，如环节动物门、线虫类、纽形动物或扁形动物门，有长的、柔软的、圆的或扁平的身体，经常没有明显的附属肢体〔midgut〕The middle portion of the digestive tract of certain invertebrates, such as arthropods, lined with an enzyme-secreting tissue and serving as the main site of digestion and absorption.中央管：某些无脊椎动物，如节肢动物消化管的中央部分，上面布有分泌酶的组织，为消化和吸收的主要部位〔zoochlorella〕Any of numerous unicellular green algae that live symbiotically within the cells of other organisms, especially those of many freshwater invertebrates.虫绿藻：一种单细胞绿藻，共生地生长在其他生物体的细胞内，尤指许多淡水的无脊椎动物细胞内〔spermatophore〕A capsule or compact mass of spermatozoa extruded by the males of certain invertebrates and primitive vertebrates and directly transferred to the reproductive parts of the female.精子包囊，精包：某些雄性无脊椎动物或低级脊椎动物射出的直接进入雌性生殖系统中的精子囊或紧密的精子团〔prosoma〕The anterior or cephalic portion of the body of certain invertebrates, such as arachnids, in which segmentation is not evident.前体：某些无脊椎动物比如蜘蛛类动物的头部或前面部分，在这一部位环节不明显〔cnidarian〕Any of various invertebrate animals of the phylum Cnidaria, characterized by a radially symmetrical body with a saclike internal cavity, and including the jellyfishes, hydras, sea anemones, and corals. Also called coelenterate 刺细胞动物：任何一种属于刺细胞动物门的各式无脊椎动物，其特征为一个内部有囊状腔﹑成放射状对称的身体。包括水母﹑水螅﹑海葵以及珊瑚 也作 coelenterate〔pseudocoel〕An internal body cavity of some primitive invertebrates, similar to a coelom but lacking a mesodermal lining.假体腔：某些原始无脊椎动物体内腔室，与体腔相似，但是没有中胚膜〔zoophyte〕Any of various invertebrate animals, such as a sea anemone or sponge, that attach to surfaces and superficially resemble plants.植形动物：一种无脊椎动物，附着在表面而且看上去象植物一样，例如海葵和海绵〔invertebrate〕invertebrate zoology.无脊椎动物的动物特性〔arthropod〕Any of numerous invertebrate animals of the phylum Arthropoda, including the insects, crustaceans, arachnids, and myriapods, that are characterized by a chitinous exoskeleton and a segmented body to which jointed appendages are articulated in pairs.节肢动物：一种节肢动物分类的节肢动物门无脊椎动物，包括昆虫，甲壳纲动物，蛛形纲动物和多足纲节肢动物，其特征为有一甲壳质成对连接副肢的外骨骼和分节的身体 |
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