MODULAR
Mod"u*lar, a.

Defn: Of or pertaining to mode, modulation, module, or modius; as, modular arrangement; modular accent; modular measure.

MODULATE
Mod"u*late, v. t. [imp. & p. p. Modulated; p. pr. & vb. n.
Modulating.] Etym: [L. modulatus, p.p. of modulari to measure, to
modulate, fr. modulus a small measure, meter, melody, dim. of modus.
See Mode.]

1. To form, as sound, to a certain key, or to a certain portion.

2. To vary or inflect in a natural, customary, or musical manner; as, the organs of speech modulate the voice in reading or speaking. Could any person so modulate her voice as to deceive so many Broome.

MODULATE
Mod"u*late, v. i. (Mus.)

Defn: To pass from one key into another.

MODULATION
Mod`u*la"tion, n. Etym: [L. modulatio: cf. F. modulation.]

1. The act of modulating, or the state of being modulated; as, the modulation of the voice.

2. Sound modulated; melody. [R.] Thomson.