| 单词 | summer ovum |
| 释义 | > as lemmassummer ovum summer ovum n. now rare (usually in plural) a thin-shelled egg that is produced in spring and summer by various (esp. freshwater) invertebrates and develops rapidly; = summer egg n.Contrasted with winter ovum n. at winter n.1 Compounds 2. ΘΚΠ the world > animals > invertebrates > bodies or parts > [noun] > summer eggs summer egg1855 summer ovum1855 1855 Q. Jrnl. Microsc. Sci. 3 140 The female produces ‘Summer’ and ‘Winter-ova’. 1891 Ann. & Mag. Nat. Hist. 8 190 The summer ovum of Daphnia similis..is enclosed in two membranes. 1970 Trans. Amer. Microsc. Soc. 89 309 Fall and winter ova were more resistant to change in their rounded shape than were spring and summer ova. < as lemmas |
| 随便看 |
英语词典包含1132095条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。