| 单词 | ovum |
| 释义 | DEFINITIVE EXAMPLES 权威例句〔Graafian follicle〕Any of the fluid-filled vesicles in the mammalian ovary containing a maturing ovum.囊状卵泡：有一个成熟卵细胞的哺乳动物卵巢里的流动的囊泡美国传统〔blastomere〕Any of the cells resulting from the cleavage of a fertilized ovum during early embryonic development.分裂球：在早期胚胎发育时受精卵分裂产生的任何细胞美国传统〔deutoplasm〕The nutritive substances or yolk in the cytoplasm of an ovum or other cell.滋养质：卵细胞或其他细胞的细胞质中的卵黄或营养物质美国传统〔ectopic pregnancy〕Implantation and subsequent development of a fertilized ovum outside the uterus, as in a fallopian tube.子宫外孕：在子宫外进行受精卵移植并随后发育，如在输卵管中美国传统〔fertilize〕To cause the fertilization of (an ovum, for example).使（如卵子）受精、受胎美国传统〔follicle〕A cavity in the ovary containing a maturing ovum surrounded by its encasing cells.卵泡：含成熟的卵子的子房中的小洞，被周围细胞所包围美国传统〔germ cell〕An ovum or a sperm cell or one of its developmental precursors.生殖细胞：一个卵子或精子细胞或其由之发育而来的细胞美国传统〔impregnate〕To fertilize (an ovum, for example).使（例如卵细胞）受精美国传统〔micropyle〕Zoology A pore in the membrane covering the ovum of some animals through which a spermatozoon can enter.【动物学】 卵膜孔：一些动物卵细胞覆盖膜上的小孔，精子可由此进入美国传统〔mole〕A fleshy, abnormal mass formed in the uterus by the degeneration or abortive development of an ovum.胎块：子宫中似肉的不正常块质，是由卵细胞的变质或发育不全产生的美国传统〔monozygotic〕Derived from a single fertilized ovum or embryonic cell mass. Used especially of identical twins.单卵的：由一个受精卵或胚胎细胞群而派生来的。尤指用于同卵双美国传统〔morula〕The spherical embryonic mass of blastomeres formed before the blastula and resulting from cleavage of the fertilized ovum.桑椹胚：形成于囊胚之前且处于胚胎期内的球形裂球群，由受精卵细胞的分裂而成美国传统〔oocyte〕A cell from which an egg or ovum develops by meiosis; a female gametocyte.卵母细胞：一种通过分裂产生卵子的细胞，是一种雌性配子母细胞美国传统〔oogenesis〕The formation, development, and maturation of an ovum.卵生成：卵子的形成，发育和成熟美国传统〔ootid〕A haploid cell that results from the meiotic division of an oocyte and becomes a female gamete or an ovum.卵（子）细胞：由于卵母细胞减数分裂产生而后形成配子或卵细胞的单倍体细胞美国传统〔ovarian follicle〕A cavity in the ovary containing a maturing ovum surrounded by its encasing cells.卵巢泡：卵巢腔，包含被卵细胞环绕的成熟卵细胞美国传统〔ovule〕Zoology A small or immature ovum.【动物学】 小卵：一小的或未成熟的卵细胞美国传统〔ovum〕Once the ovum is released it has a lifespan of 12 to 36 hours.卵子排出后可存活12至36小时。柯林斯高阶〔ovum〕Once the ovum is released, it has a lifespan of 12 to 36 hours.卵子排出后, 存活期为12小时至36小时。外研社新世纪〔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美国传统〔superfecundation〕Fertilization of more than one ovum within a single menstrual cycle by separate acts of coitus, especially by different males.同期复孕：一个月经周期内不同的性行为引起的多于一个卵细胞的受精，尤指与不同男性发生性行为引起的美国传统〔zygote〕The cell formed by the union of two gametes, especially a fertilized ovum before cleavage. 合子：两个配子结合而成的细胞，特指分裂前的受精卵美国传统 |
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