I. ˈkrȯs-ˌō-vər noun
Date: 1884
1. : crossing 2a
2. : an instance or product of genetic crossing-over
3. : a voter registered as a member of one political party who votes in the primary of the other party
4. : a broadening of the popular appeal of an artist (as a musician) that is often the result of a change of the artist's medium or style ; also : an artist or artistic work that has achieved a crossover
5. : an instance of breaking into another category
trying to make the crossover to serious acting — Michael Neill
6. : a basketball maneuver in which a player dribbles the ball quickly from one hand to the other
II. adjective
Date: 1893
1. : having two pieces that cross especially one over the other
a crossover vest
2. : critical 1
the crossover point