harmonicalHARMON'ICAL, a. [See Harmony.] Relating to harmony or music; as harmonical use. Harmonical mean, in arithmetic and algebra, a term used to express certain relations of numbers and quantities, which are supposed to bear an analogy to musical consonances. Harmonical proportion, in arithmetic and algebra,is said to obtain between three quantities, or four quantities, in certain cases. Harmonical series, a series of many numbers in continued harmonical proportion. |