from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The science that deals with the promotion and preservation of health. Also called hygienics.
- n. Conditions and practices that serve to promote or preserve health: hygiene in the workplace; personal hygiene.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The science of health, its promotion and preservation.
- n. Those conditions and practices that promote and preserve health.
- n. Cleanliness, in the context of personal hygiene.
from the GNU version of the Collaborative International Dictionary of English
- n. That department of sanitary science which treats of the preservation of health, esp. of households and communities; a system of principles or rules designated for the promotion of health.
from The Century Dictionary and Cyclopedia
- n. That department of medical knowledge which concerns the preservation of health; a system of principles or rules designed for the promotion of health; sanitary science.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a condition promoting sanitary practices
- n. the science concerned with the prevention of illness and maintenance of health
French hygiène and New Latin hygieina, both from Greek hugieinē (tekhnē), (art) of health, feminine of hugiēs, healthy; see gwei- in Indo-European roots.(American Heritage® Dictionary of the English Language, Fourth Edition)
From French hygiène, from Ancient Greek ὑγιαίνω (hugiainō, "be healthy, sound"), from ὑγιής (hugies, "healthy, sound"). (Wiktionary)