adj concordant; musical; consonant; as, harmonic sounds.
2. harmonical ·adj having relations or properties bearing some resemblance to those of musical consonances;
said of certain numbers, ratios, proportions, points, lines. motions, and the like.
3. harmonical ·adj relating to harmony, as melodic relates to melody; harmonious; ·esp., relating to the accessory sounds or overtones which accompany the predominant and apparent single tone of any string or sonorous body.