*amplification*

n. [ L. amplificatio. ] 1. The act of amplifying or enlarging in dimensions; enlargement; extension. [ 1913 Webster ]

2. (Rhet.) The enlarging of a simple statement by particularity of description, the use of epithets, etc., for rhetorical effect; diffuse narrative or description, or a dilating upon all the particulars of a subject. [ 1913 Webster ]

Exaggeration is a species of amplification. Brande & C. [ 1913 Webster ]

I shall summarily, without any amplification at all, show in what manner defects have been supplied. Sir J. Davies. [ 1913 Webster ]

3. The matter by which a statement is amplified; as, the subject was presented without amplifications. [ 1913 Webster ]