(1) In this section -

"disposition" means any disposition of property howsoever made other than a disposition made by a will or codicil;

"relief" means the financial or other material benefits conferred by an order under section 12, 13 or 14, paragraph (a) or (b) of section 15(1) or section 16, 17, 18 or 22 (other than an order affecting an order referred to in subsection (1)(e) thereof) and references to defeating a claim for relief are references to - (a) preventing relief being granted to the person concerned, whether for the benefit of the person or a dependent member of the family concerned, (b) limiting the relief granted, or (c) frustrating or impeding the enforcement of an order granting relief;