For the purposes of chapters
70.05 and
70.46 RCW and unless the context thereof clearly indicates to the contrary:
(1) "Local health departments" means the county or district which provides public health services to persons within the area.
(2) "Local health officer" means the legally qualified physician who has been appointed as the health officer for the county or district public health department.
(3) "Local board of health" means the county or district board of health.
(4) "Health district" means all the territory consisting of one or more counties organized pursuant to the provisions of chapters
70.05 and
70.46 RCW.
(5) "Department" means the department of health.