定律

dìnglǜ
  1. scientific law (e.g. law of conservation of energy)
  2. (in human affairs) a generalization based on observation (e.g. "power corrupts")

CEDICT

Entry Composition

1 定 dìng
  1. to fix; to set; to make definite
  2. to subscribe to (a newspaper etc); to book (tickets etc); to order (goods etc)
  3. to congeal; to coagulate
  4. (literary) definitely
2 律 lǜ law