单词 | monerula |
释义 | monerulan. Embryology. rare. disused. Haeckel's name for: an ovum with an indistinguishable nucleus (immediately after fertilization). ΚΠ 1876 Nature 27 Jan. 257/2 The monerula-, cytula-, morula-, blastula- and gastrula- stages are recounted. 1876 Q. Jrnl. Microsc. Sci. 16 56 The Monerula or fertilised egg after the loss of its ovarian nucleus or geminal vesicle. 1876 E. R. Lankester tr. E. Haeckel Hist. Creation II. xviii. 124 The Monerula, as we may call this egg-cytod without a kernel. 1936 T. L. Stedman Pract. Med. Dict. (ed. 13) Monerula, the first stage of the impregnated ovum when, according to Haeckel, the nucleus disappears, or is not distinguishable. This is a new entry (OED Third Edition, September 2002; most recently modified version published online March 2022). < |
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