Im*pinge" (?), v. t. [imp. & p. p. Impinged (?); p. pr. & vb. n. Impinging (?).] [L. impingere; pref. im- in + pangere to fix, strike; prob. akin to pacisci to agree, contract. See Pact, and cf. Impact.] To fall or dash against; to touch upon; to strike; to hit; to clash with; -- with on or upon.

The cause of reflection is not the impinging of light on the solid or impervious parts of bodies.

But, in the present order of things, not to be employed without impinging on God's justice.

• to make an impact (on, upon)
  
• fig.: to interfere with