/kraws"oh'veuhr, kros"-/ , n.
1. a bridge or other structure for crossing over a river, highway, etc.
2. Genetics.
a. See crossing over .
b. a genotype resulting from crossing over.
3. Popular Music.
a. the act of crossing over in style, usually with the intention of broadening the commercial appeal to a wider audience.
b. music that crosses over in style, occasionally sharing attributes with several musical styles and therefore often appealing to a broader audience.
4. Also called crossover voter . U.S. Politics. a member of one political party who votes for the candidate of another party in a primary.
5. See crossover network .
6. Railroads. a track structure composed of two or more turnouts, permitting movement of cars from either of two parallel and adjacent tracks to the other.
7. Dance.
a. a step in which dancers exchange places.
b. a step involving partners in which the woman moves from one side of her partner to the other, crossing in front of him.
8. Bowling. a ball that strikes the side of the head pin opposite to the bowling hand of the bowler.
9. (in plumbing) a U-shaped pipe for bypassing another pipe.
[ 1785-95; n. use of v. phrase cross over ]