In music and music theoryaugmentation is the lengthening or widening of rhythms, melodies, intervals, chords. The opposite is notes is augmented if the lengths of the notes are prolonged. A melody originally consisting of four quavers (eighth-notes) for example, is augmented if it later appears with four crotchets (quarter-notes) instead. This technique is often used in contrapuntal music. It gives rise to the "canon in augmentation", in which the notes in the following voice are longer than those in the leading. The music of Johann Sebastian Bach provides examples of this application.
An interval is augmented if it is widened; an augmented chord is one which contains an augmented interval. Thus an augmented fifth, for example, is a half step wider than the perfect fifth, and an augmented chord is a major chord whose fifth has been raised a half step.
In heraldry, an augmentation is a modification or addition to a coat of arms, typically given by a monarch as either a mere mark of favour, or a reward or recognition for some meritorious act. It is important to note that the grants of entire new coats by monarchs as a reward are not augmentations, and (in theory) an augmentation mistakenly given to someone who did not have a right to a coat would be nugatory.
Breast augmentation is usually done to balance a difference in breast size, to improve body contour, or as a reconstructive technique following surgery.
Breast augmentation, technically known as augmentation mammoplasty, is a surgical procedure to enhance the size and shape of a woman's breast for a number of reasons:
Routine mammograms should be continued after breast augmentation for women who are in the appropriate age group, although the mammographic technician should use a special technique to assure that you get a reliable reading, as discussed earlier.
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