Topic: COLOURS AND SOUNDS
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| Date: | 1500-1600 |
| Language: | Latin |
| Origin: | , past participle of modulari 'to play, sing', from modulus; MODULE |
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mod‧u‧late
1 [transitive] formalC to change the sound of your voice
2 [transitive] to change a process or activity to make it more controlled, slower, less strong etc : 
These drugs modulate the disease process.
These drugs modulate the disease process.3 [intransitive + from/to] technicalAPM to move from one key to another in a piece of music using a series of related chords
4 [transitive] technicalTCB to change the form of a radio signal so that it can be broadcast more effectively
—modulation noun [uncountable and countable]
noun [uncountable and countable]