a.

1. 力的；动力的
   a dynamic load

   动力荷载

2. 力学的；动力学的
3. 能动的；动态的
   a dynamic verb

   动态动词

4. 有活力的；有生气的；强有力的
   a dynamic young businessman

   生气勃勃的年轻商人

5. 【医】机能的，功能的
   a dynamic disease

   机能性疾病

adj.

1. (of a process or system) characterized by constant change or activity.
   ▸(of a person) full of energy and new ideas.
2. Physics  relating to forces producing motion. Often contrasted with static.
3. relating to the volume of sound produced by a musical instrument or voice.
4. Linguistics  (of a verb) expressing an action, activity, event, or process. Contrasted with stative.
5. Electronics  (of a memory device) needing to be refreshed by the periodic application of a voltage.

n.

1. a force that stimulates change or progress.
2. Music  another term for dynamics (in sense ³).