| black mulberry | (n) European mulberry having dark foliage and fruit, Syn. Morus nigra |
| black music | (n) music created by African-American musicians; early forms were songs that had a melodic line and a strong rhythmic beat with repeated choruses, Syn. African-American music |
| black muslim | (n) an activist member of a largely American group of Blacks called the Nation of Islam |
| black mustard | (n) widespread Eurasian annual plant cultivated for its pungent seeds; a principal source of table mustard, Syn. Brassica nigra |
