The three-dimensional conformation of biomolecules is of the utmost importance in their interactions; for example, in the binding of a substrate (reactant) to the catalytic site of an enzyme (Fig. 3-8), the two molecules must fit each other closely, in a complementary fashion, for biological function.
DD&A stands for Depletion, Depreciation and Amortization. Suggest new definition. This definition appears frequently and is found in the following Acronym Finder categories: Business, finance, etc.
Rate this EBITDA definition... EBITDA or earnings before interest taxes depreciation and amortization is a commonly used measure of cash flow. EBITDA can be calculated top down by adding back DDA or depreciation and amortization deducted as sales costs to operating income before interest and taxes.BITDA or earnings before interest taxes depreciation and amortization is a commonly used measure of cash flow.