The Collaborative International Dictionary of English v.0.48:

Collide \Col*lide"\, v. i. [L. collidere, collisum; col- +
   laedere to strike. See Lesion.]
   To strike or dash against each other; to come into collision;
   to clash; as, the vessels collided; their interests collided.
   [1913 Webster]

         Across this space the attraction urges them. They
         collide, they recoil, they oscillate.    --Tyndall.
   [1913 Webster]

         No longer rocking and swaying, but clashing and
         colliding.                               --Carlyle.
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The Collaborative International Dictionary of English v.0.48:

Collide \Col*lide"\, v. t.
   To strike or dash against. [Obs.]
   [1913 Webster]

         Scintillations are . . . inflammable effluencies from
         the bodies collided.                     --Sir T.
                                                  Browne.
   [1913 Webster]

WordNet (r) 3.0 (2006):

collide
    v 1: be incompatible; be or come into conflict; "These colors
         clash" [syn: clash, jar, collide]
    2: cause to collide; "The physicists collided the particles"
    3: crash together with violent impact; "The cars collided"; "Two
       meteors clashed" [syn: collide, clash]