1. (

• crossing_over ,
• crossover

) the interchange of sections between pairing homologous chromosomes during the prophase of meiosis ;

2. (

• crossover_voter ,
• crossover

) a voter who is registered as a member of one political party but who votes in the primary of another party ;

3. (

• crossover

) the appropriation of a new style (especially in popular music) by combining elements of different genres in order to appeal to a wider audience; "a jazz-classical crossover album" ;

4. (

• crossing ,
• crosswalk ,
• crossover

) a path (often marked) where something (as a street or railroad) can be crossed to get from one side to the other ;