transitive verb modulated -·lat′ed, modulating -·lat′·ing

1. to regulate, adjust, or adapt to the proper degree
2. to vary the pitch, intensity, etc. of (the voice), often specif. to a lower degree
3. Radio to vary the amplitude, frequency, or phase of (an oscillation, as a carrier wave) in accordance with some signal

Etymology: < L modulatus, pp. of modulari, to regulate, measure off, arrange < modulus, dim. of modus: see mode

intransitive verb