As used in this part, unless the context plainly indicates a different meaning, the following words, terms, and phrases shall have the meanings respectively ascribed to them:
(1) BOARD. The Board of County Commissioners.
(2) COUNTY. Limestone County, Alabama.
(3) EMPLOYEE. Any person including the heads of departments, chief clerks, and chief deputy sheriff, who is employed in the service of the county on a regular full-time basis.
(4) HEAD OF DEPARTMENT OR OFFICES. Shall include but not be limited to the sheriff, tax assessor, tax collector, judge of probate, and county clerk.