polyphony

Definition of Polyphony in English :

music arranged in parts for several voices or instruments

WordNet Lexical Database for English. Princeton University. 2010.

Polyphony

noun plural -nies

1.

polyphonic style of composition or a piece of music utilizing it

2.

the use of polyphones in a writing system

noun

1.

multiplicity of sounds, as in an echo

2. Music

a combining of a number of independent but harmonizing melodies, as in a fugue or canon; counterpoint

3. Phonetics

the representation of two or more sounds by the same letter, symbol, or group of symbols, as the group th as in then and in thin

n. pl. po·lyph·o·nies

Music with two or more independent melodic parts sounded together.