hygieio-, hygiei-, hygio-, hygi- +

Adverse to health; insalubrious [salubrious, beneficial to or promoting health or well-being].

In Greek Mythology, the goddess of health, daughter of Aesculapius; health personified; by extension, a system of sanitation or medical practice.

Pertaining to Hygeia, or to health; healthy; relating to hygiene or medical science, sanitary.

1. Worship of health; excessive devotion to hygiene.
2. An obselete term for an extreme observance of the principles of hygiene.

Someone who is a specialist in hygiene; a sanitarian.

Relating to health; sanitary, hygienic.

The science of hygiene and sanitation; also, hygieology, hygiology.

Relating to hygiene, hygienic.

1. The science of health and its maintenance.
2. Cleanliness that promotes health and well being; especially, of a personal nature.
3. That department of knowledge or practice which relates to the maintenance of health; a system of principles or rules for preserving or promoting health; sanitary science.

1. Relating to the scientific study or principles of cleanliness and health.
2. A reference to health or its preservation.
3. Clean or free from disease-causing microorganisms.
4. Belonging or relating to hygiene; sanitary.

In a hygienic manner, in relation to hygiene.

Hygienic subjects or matters.

1. One who is skilled in the science of health and its maintenance. Synonym: hygieist.
2. Someone who specializes in hygiene, or in a specific branch of hygiene, such as, a dental hygienist.

Regarding something harmful to one's health: Mrs. Smith put the hygienocic insect repellant up high on the shelf so that her daughter couldn't reach it.

The science of hygiene and sanitation, and the practice thereof.