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harmonica
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harmonic

har·mon·ic [ haar mónnik ]


adjective 
Definition:
 
1. produced by harmony: relating to, produced, or marked by harmony

2. physics relating to integral multiple of frequency: describes a frequency that is an integral multiple of a fundamental frequency



noun  (plural har·mon·ics)
Definition:
 
1. physics multiple of fundamental frequency: a single oscillation having a frequency that is an integral multiple of a fundamental frequency, e.g. 220 Hz and 330 Hz are both harmonics of 110 Hz

2. overtone on stringed instrument: an overtone produced on an instrument, e.g. by lightly touching a vibrating string at a point where the string to either side will continue to vibrate

[Late 16th century. Via Latin harmonicus< Greek harmonikos< harmonia (see harmony)]

har·mon·i·cal·ly adverb
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