/pree"moh/ ; for 1, 2 also It. /prddee"maw/ , n. , pl. primos, primi /-mee/ , adj.
n. Music.
1. the part of a piano duet played on the upper half of the keyboard.
2. the first or leading part in an ensemble.
adj.
3. Slang.
a. first-class: dinner at a primo restaurant.
b. highly valuable or most essential: the primo player on the team.
[ 1785-95; primus. See PRIME ]