Search Result for "collision course":
Wordnet 3.0

NOUN (2)

1. a course of a moving object that will lead to a collision if it continues unchanged;

2. a course of action (following a given idea) that will lead to conflict if it continues unabated; 



WordNet (r) 3.0 (2006):

collision course
    n 1: a course of a moving object that will lead to a collision
         if it continues unchanged
    2: a course of action (following a given idea) that will lead to
       conflict if it continues unabated