Har*mon"i*con (-*kn), n. A small, flat, wind instrument of music, in
which the notes are produced by the vibration of free metallic reeds.
Har*mon"ics (-ks), n. 1. The doctrine or science of musical sounds.
2. pl. (Mus.) 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.
Har*mo"ni*ous (h‰r*m"n*s), a. [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.