单词	lignin
释义	lignin /ˈlɪɡnɪn / noun [mass noun] Botany A complex organic polymer deposited in the cell walls of many plants, making them rigid and woody.Callose, lignin and suberin are polymers that can be elicited as plant defences that reinforce cell walls of some species.... The hypodermis of all three species has two distinct zones that contain suberin and lignin. Impregnation of endodermal and hypodermal walls with suberin and lignin should reduce the diameter of interfibrillar spaces. Origin Early 19th century: from ligni- 'of wood' + -in1.
随便看	afocal a fool and his money are soon parted afoot afore afore- aforegoing a foregone conclusion aforehand aforementioned aforenamed aforeness aforerider aforesaid aforetime aforetimes a fortiori afoul afraid afraidness A-frame Aframericanism Afrasian Afreedee Afreedi a free hand

英语词典包含243303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。