As used in this act: (a) "Teacher" shall mean and include teachers, supervisors, principals, superintendents and any other professional employees who are required to hold a teacher's or school administrator's certificate in any public school.

1. (b) "Governing body" and "board of education" shall mean the board of education of any public school district.

L. 1951, ch. 413, § 1; L. 1965, ch. 410, § 28; L. 1969, ch. 317, §7; April 25.