regulation

/ˌrɛɡjəˈleɪʃən/
noun
  1. An official rule or law made by a government or authority.
    • The school has a regulation against running in the hallways.
    • The new regulation requires all cars to pass an emissions test.
    • Companies must follow safety regulations to protect their workers.
  2. The act of controlling or managing something according to rules or standards.
    • The regulation of air traffic is handled by a central agency.
    • The regulation of the banking industry helps prevent fraud.
    • Proper regulation of body temperature is important for health.
adjective
  1. Official or standard, as required by rules.
    • The basketball hoop is at regulation height.
    • The players wore regulation uniforms for the match.
    • You need a regulation passport photo for the application.