Note:  Do not rely on this information. It is very old.

Cadence

Cadence, in Music, a sequence of chords forming the close of a phrase; the term is generally limited to the two last chords. There are various kinds of cadences, the principal being the perfect, the imperfect, the interrupted, and the plagal cadences. The perfect or full cadence was formerly the most frequently employed, but of late years a tendency towards an almost complete avoidance of this form has manifested itself.

Click for more about Cadence