1. The quality of being competent or capable of performing an allotted function.
2. In psychiatry, an antidote to certain types of anxiety.
3. The normal tight closure of a cardiac valve.
4. The ability of a group of embryonic cells to respond to an inducer.
5. The ability of a (bacterial) cell to take up free DNA, which may lead to transformation.
6. In psychiatry, the mental ability to distinguish right from wrong and to manage one's own affairs, or to assist one's counsel in a legal proceeding.
7. The state of reactivity of a cell, tissue, or organism that allows it to respond to certain stimuli.
The definition information for competence is provided by Stedman's. You can search our medical dictionary here.