| [/nəud; nod/] n 用法:
1 (botany 植) (a) knob on a root or branch （根或枝上的）瘤, 节.
(b) point on the stem of a plant where a leaf or bud grows out 茎节（长叶或发芽的部位）. 用法:
2 hard swelling, eg on a joint in the human body 硬结（如生於人体关结处的）. 用法:
3 (physics 物) point or line in a vibrating body that remains still （物理）波节（振动体的静止点或线）. 用法:
4 (mathematics 数) point at which a curve crosses itself （数学）结点（曲线本身的交点）; 叉点. |