| 单词 | 精子 |
| 释义 | 〔pronucleus〕The haploid nucleus of a sperm or egg before fusion of the nuclei in fertilization.原核，前核：在受精细胞核结合之前，精子或卵子的单倍体细胞核〔nucleated〕the nucleated cell of a spermatozoon.精子的有核的细胞〔spermidine〕A polyamine compound, C7H 19N 3, found in ribosomes and living tissues and having various metabolic functions. It was originally isolated from semen. 亚精胺：一种多胺化合物，化学式为C7H 19N 3，存在于核糖体及活组织中，具有各种代谢功能。一旦产生即与精子分离 〔conception〕Formation of a viable zygote by the union of the male sperm and the female ovum; fertilization.受精：通过雄性精子与雌性卵细胞结合而形成受精卵的过程；受精〔gamete〕A reproductive cell having the haploid number of chromosomes, especially a mature sperm or egg capable of fusing with a gamete of the opposite sex to produce the fertilized egg.配子：具有染色体的单倍数的生殖细胞，尤指一个成熟精子或卵子能与相对性的配子结合而产生受精卵〔spermine〕A crystalline polyamine compound, C10H 26N 4, present in ribosomes and found widely in living tissues along with spermidine. It was originally isolated from semen. 精胺，精素：一种晶体状多胺化合物，化学式为C10H 26N 4,存在于核糖体中，并与亚精胺一起大量存在于活组织中。一旦产生即与精子分离 〔heterogametic〕Producing dissimilar gametes, such as those of human males, who produce two types of spermatozoa, one bearing the X-chromosome and the other bearing the Y-chromosome.产生异形配子的：产生不同的配子，如产生含有X型染色体和含有Y型染色体的两种类型的精子的人类男性配子的〔zooid〕An organic cell or organized body that has independent movement within a living organism, especially a motile gamete such as a spermatozoon.游动孢子：在有机体内可以独立运动的生物细胞或有组织结构的肢体，特别指能动的配子，例如精子〔male〕Of, relating to, or designating the sex that has organs to produce spermatozoa for fertilizing ova.雄的，公的：属于、表明是或与某种性别有关的，此性别具有能产生使成熟卵子受精的精子的器官〔clasper〕A posterior extension on each of the pelvic fins of male elasmobranch fishes that aids in the transmission of sperm during copulation.交合突，鳍脚：雄性板腮亚纲鱼的每支腹鳍的前端延伸，在交配中辅助精子的传递〔gynogenesis〕Parthenogenesis in which the egg is activated by sperm, but without fusion of the egg and sperm nuclei.雌核生殖：一种单性生殖，精子激活卵子，但是卵子和精子核没有融合〔gossypol〕A toxic pigment, C30H 30O 8, obtained from cottonseed oil and detoxified by heating, that has been experimentally shown to inhibit sperm production. 棉籽酚：一种有毒的色素，C30H 30O 8，经实验证明该色素抑制精子的繁殖。提炼自棉籽油，加热后可解毒 〔ovotestis〕A hermaphroditic reproductive organ that produces both sperm and eggs, found in certain gastropods.卵精巢：雌雄同体的再生器官，可以产精子和卵子，在腹足纲软体动物身上发现〔amphimixis〕The union of the sperm and egg in sexual reproduction.两性融合，杂交繁育：在有性繁殖中精子和卵子的结合〔spermatozoon〕The mature fertilizing gamete of a male organism, usually consisting of a round or cylindrical nucleated cell, a short neck, and a thin, motile tail. Also called sperm cell ,zoosperm 精子：雄性有机体的成熟受精配子，通常由一圆形或柱形有核细胞、短颈及能动的尾部鞭毛组成 也作 sperm cell,zoosperm〔urethra〕The canal through which urine is discharged from the bladder in most mammals and through which semen is discharged in the male.尿道：大多数哺乳动物自上尿液从膀胱中排出体外的管道，雄性的精子可从中排出〔spermatic〕Of, relating to, or resembling sperm:精子（或精液）的，与精子（或精液）有关的，与精子（或精液）相似的：〔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〔spermatid〕Any of the four haploid cells formed by meiosis in a male organism that develop into spermatozoa without further division.精细胞：雄性有机体中通过减数分裂产生的四个单倍体细胞之任何一个，无需经进一步的分裂就能发展成为精子〔sperm〕A male gamete or reproductive cell; a spermatozoon.精子：男性配子或生殖细胞；精子〔Leeuwenhoek〕Dutch microscopy pioneer and naturalist who formulated early descriptions of bacteria and spermatozoa.列文虎克，安东·范：(1632-1723) 荷兰显微学的先驱人物，博物学家。他系统地描述了细菌和精子〔semen〕from Latin sēmen [seed, semen] * see sē- 源自 拉丁语 sēmen [种子，精子] * 参见 sē- 〔semen〕A viscous, whitish secretion of the male reproductive organs, containing spermatozoa and serving as their transporting medium.精液：雄性生殖器官产生的白色粘液，含有精子并是精子的输送媒介物〔polyspermy〕The entry of several sperm into one ovum during fertilization.多精入卵，多精受精：在受精过程中数个精子进入一个卵细胞〔diaphragm〕A contraceptive device consisting of a thin flexible disk, usually made of rubber, that is designed to cover the uterine cervix to prevent the entry of sperm during sexual intercourse.子宫帽避孕套：通常由薄橡皮膜制成的套在子宫颈上的帽，以避免性交过程中精子的进入〔conception〕The entity formed by the union of the male sperm and the female ovum; an embryo or a zygote.合子：精子与卵子结合成的物体；胚胎或合子〔heterogamete〕Either of two conjugating gametes that differ in structure or behavior, such as the small, motile male spermatozoon and the larger, nonmotile female ovum. Also called anisogamete 异形配子：在结构或行为上不同的两个配合配子之一，如小的能动的雄性精子与大的不能动的雌性卵子 也作 anisogamete〔testis〕The reproductive gland in a male vertebrate, the source of spermatozoa and the androgens, normally occurring paired in an external scrotum in human beings and certain other mammals.睾丸：脊椎动物的男性生殖腺、精子和雄性激素的源泉，人类和某些哺乳动物正常的成对出现在一个体外的阴囊中〔spermiogenesis〕Transformation of a spermatid into a spermatozoon.精子产生：由精细胞到精子的转变〔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〔acrosome〕A caplike structure at the anterior end of a spermatozoon that produces enzymes aiding in egg penetration.精子头粒蛋白：一种在精子内前端的帽状结构，可产生帮助穿透卵子的酶〔spermiogenesis〕New Latin spermium [spermatozoon] probably from Late Latin sperma [semen] * see sperm 1新拉丁语 spermium [精子] 可能源自 后期拉丁语 sperma [精液] * 参见 sperm1 |
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