| 释义 |
mesoderm|ˈmɛsəʊdɜːm|
[f. Gr. µέσο-ς middle + δέρµα skin.]
1. Bot.
a. ‘The middle layer of tissue in the shell of the spore-case of an urn-moss’ (Treas. Bot. 1866).
b. ‘The middle layer of the bark’ (Syd. Soc. Lex. 1890).
1874Q. Jrnl. Microsc. Sci. XIV. 159 As soon as the two primary germ-lamellæ begin to differentiate and to develop between them a middle cell-layer (mesoderm).
2. Biol. = mesoblast.
1873W. S. Dallas (tr. Haeckel) in Ann. Mag. Nat. Hist. Ser. iv. XI. 257 The origin of the Mesoderm. 1877Ray Lankester in Q. Jrnl. Microsc. Sci. XVII. 416 The contractile fibrous appendices of the ectoderm..formed a..primitive mesoderm or mesoblast.
attrib.1874Q. Jrnl. Microsc. Sci. XIV. 159 The mesoderm-layer. 1884Ibid. XXIV. 90 To determine the part played by wandering mesoderm cells immediately below the thin ectoderm.
Hence mesoˈdermal, mesoˈdermic adjs., of, relating to, or derived from the mesoderm.
1877Huxley Anat. Inv. Anim. iii. 143 The mesodermal layer. 1884Q. Jrnl. Microsc. Sci. XXIV. 107 Mesodermal Plasmodia, are..found even in the higher animals, not excepting Man himself. 1884W. Patten ibid. 590 The fusion of the edges of the mesodermic folds. |