单词	pulvinus
释义	pulvinus /pʌlˈvʌɪnəs / noun (plural pulvini /pʌlˈvʌɪnʌɪ/) Botany An enlarged section at the base of a leaf stalk in some plants, which is subject to changes of rigidity leading to movements of the leaf or leaflet.Leaves move by means of turgor pressure changes at the pulvinus at the base of each lamina.... Soluble proteins were extracted from gravistimulated pulvini and subjected to protein phosphorylation reactions. The ion flux occurs within seconds after gravistimulation and establishes pH gradients across roots and maize pulvini. Origin Mid 19th century: from Latin, literally 'cushion'.
随便看	good fellowship good-fitting good folk good form good-for-naught good-for-nothing good-for-nothingness good-for-nought good for (or on) you (or him, her, etc.)! good-for-something good for the soul Good Friday Good Friday agreement good-going good graces good grief! good guts good guy good hair good-handling good-hearted good-heartedness good Henry good-hitting Good Hope, Cape of

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。