英语词汇“θ18939”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	θ18939
释义	the world > life > biology > biological processes > procreation or reproduction > reproductive substances or cells > [noun] > ovum or ootid > yolk > sac (4) yolk sac1831 a membranous sac attached to the developing embryo which acts as a source of nutrition. vitelline membrane1845 vitelline membrane, vitelline sac, the transparent membrane which surrounds the yolk of an egg; the yolk-sac; the investing membrane of the embryo. vitellicle1852 A vitelline sac; a yolk-sac. vitelline sac1880 vitelline membrane, vitelline sac, the transparent membrane which surrounds the yolk of an egg; the yolk-sac; the investing membrane of the embryo.
随便看	θ22136 θ221360 θ221361 θ221362 θ221363 θ221364 θ221365 θ221366 θ221367 θ221368 θ221369 θ22137 θ221370 θ221371 θ221372 θ221373 θ221374 θ221375 θ221376 θ221377 θ221378 θ221379 θ22138 θ221380 θ221381

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