Sanitarian (noun)

A person who is concerned with public health and hygiene, and who works to promote and maintain clean and healthy living conditions.

Origin:

The word 'sanitarian' is derived from the latin word 'sanitas' meaning 'health' and the suffix '-ian' which is used to form nouns indicating a person or thing related to the root word. the term has been used in english since the 19th century.

Examples:

1. The local sanitarian was called in to inspect the restaurant after several customers reported food poisoning.
2. The sanitarian was responsible for ensuring that the water supply was safe and free from contaminants.
3. The sanitarian was admired by many for his dedication to improving the health and well-being of his community.
4. The sanitarian's work was critical in the control and prevention of disease outbreaks in the city.
5. The sanitarian's efforts were instrumental in promoting healthy and safe living conditions for all residents in the area.