Biology. A peculiar flowing motion or ‘rotation’ of protoplasm in a cell.
Biology. The clumping together of chloroplasts in a cell under the influence of bright light; an instance of this.
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。