| 单词 | root cap |
| 释义 | > as lemmasroot cap root cap n. Botany a layer of parenchymatous cells covering the root meristem which serve to protect it from damage as it is pushed through the soil; = calyptra n. Additions 2. ΘΚΠ the world > plants > part of plant > root > [noun] > root-cap root cap1849 calyptra1898 the world > plants > part of plant > cell or aggregate tissue > [noun] > tissue > covering root pileorhiza1849 root cap1849 1849 E. Lankester tr. M. J. Schleiden Princ. Sci. Bot. ii. i. 51 The green-walled cells of the root-caps [Ger. Luftwurzeln] of Aerides odoratum. 1900 H. L. Keeler Our Native Trees 503 This tip is covered with a protecting cap called the root-cap and this may push its way without injury to the growing point. 2005 Trends in Plant Sci. 10 44/1 As the root advances through the soil, the root cap is the first to encounter challenges, often stressful, in the new soil environment. < 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。