/nəʊd; nod/
n
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）.
2 hard swelling, eg on a joint in the human body 硬结（如生于人体关结处的）.
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）.
4 (mathematics 数) point at which a curve crosses itself （数学）结点（曲线本身的交点）; 叉点.

n[C]technical
[Date: 1300-1400; Language: Latin;Origin: nodus 'knot, node']
the place on the stem of a plant from which a leaf or branch grows
a place where lines in a network cross or join
a part of a computer network where messages can be received or sent
a lymph node