1. “Strike” means any concerted:
(a) Stoppage of work, slowdown or interruption of operations by employees of the State of Nevada or local government employees;
(b) Absence from work by employees of the State of Nevada or local government employees upon any pretext or excuse, such as illness, which is not founded in fact; or
(c) Interruption of the operations of the State of Nevada or any local government employer by any employee organization or labor organization.
2. The term does not include any concerted conduct described in subsection 1 that is engaged in by teachers at one or more schools in a school district unless the concerted conduct is engaged in on a district-wide basis.