Main Entry:

mod·u·la·tion

Pronunciation:

\ˌmä-jə-ˈlā-shən\

Function:

noun

Date:

1501

1: an inflection of the tone or pitch of the voice ; specifically : the use of stress or pitch to convey meaning2: a regulating according to measure or proportion : tempering3: a change from one musical key to another by modulating4: the process of modulating a carrier or signal (as in radio) ; also : the result of this process