2. pl. (Mus.)

Defn: Secondary and less distinct tones which accompany any principal, and apparently simple, tone, as the octave, the twelfth, the fifteenth, and the seventeenth. The name is also applied to the artificial tones produced by a string or column of air, when the impulse given to it suffices only to make a part of the string or column vibrate; overtones.

HARMONIOUS
Har*mo"ni*ous, a. Etym: [Cf. F. harmonieux. See Harmony.]

1. Adapted to each other; having parts proportioned to each other; symmetrical. God hath made the intellectual world harmonious and beautiful without us. Locke.

2. Acting together to a common end; agreeing in action or feeling; living in peace and friendship; as, an harmonious family.

3. Vocally or musically concordant; agreeably consonant; symphonious.
— Har*mo"ni*ous*ly, adv.
— Har*mo"ni*ous*ness, n.

HARMONIPHON
Har*mon"i*phon, n. Etym: [Gr. (Mus.)

Defn: An obsolete wind instrument with a keyboard, in which the sound, which resembled the oboe, was produced by the vibration of thin metallic plates, acted upon by blowing through a tube.

HARMONIST
Har"mo*nist, n. Etym: [Cf. F. harmoniste.]

1. One who shows the agreement or harmony of corresponding passages of different authors, as of the four evangelists.