Definitions for rap music
Random House Webster's College Dictionary
a popular music idiom marked by the rhythmical intoning of rhymed couplets to an insistent beat.
Category: Music and Dance
Origin of rap music:
rap, rap music, hip-hop(noun)
genre of African-American music of the 1980s and 1990s in which rhyming lyrics are chanted to a musical accompaniment; several forms of rap have emerged
A form of popular music emphasizing spoken rhymes over heavily rhythmic backing tracks.