A Competent Authority is the body, which has the authority to act on behalf of the government of a member state to ensure that the requirements of the medical devices directives are carried out in that particular member state.
Definition of Law of Combining Volumes: A relation stating that the relative volumes of gases in a chemical reaction are present in the ratio of small integers (assuming all gases are at the same temperature and pressure). Also Known As: Gay-Lussac's Law. Examples: In the reaction. 2 H2(g) + O2(g) â 2 H2O(g)
noun. 1  a. A collection of written or printed sheets bound together; a book. 2  A roll of parchment; a scroll. 3  Abbr. V a. 4  a. Amount; quantity: a low volume of business; a considerable volume of lumber. b. often volumes A large amount: volumes of praise. 5  a. The amplitude or loudness of a sound.