单词 | isepiptesis |
释义 | isepiptesisisopiptesisn. rare. A line (either imaginary or on a map) connecting points which migrating birds reach at the same time. ΘΚΠ the world > the earth > earth sciences > geography > map-making > map > [noun] > line on map > biological phenomena isophane1918 isepiptesis1926 isochar1963 1926 A. L. Thomson Probl. Bird-migration viii. 132 His [sc. Middendorff's] method was to plot out ‘isepipteses’, or isochronal lines, joining up all localities corresponding with each other as to their average dates for the arrival of particular summer visitors. 1962 C. D. Sherman tr. J. Dorst Migrations of Birds viii. 233 He [sc. Middendorff] plotted these data on a map, linked the localities which migrants reach on the same date and thus obtained a line he called the isopiptes..(this line was later named the isochronal line).] Derivatives isepiˈptesial adj. ΚΠ 1875 A. Newton in Encycl. Brit. III. 768/1 His [sc. Middendorff's] chief object has been to trace what he has termed the isepipteses... Assuming that the advance is directly across the isepiptesial lines..the whole course of the migration is thus most accurately made known. This entry has not yet been fully updated (first published 1976; most recently modified version published online March 2018). < n.1875 |
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。