Definition of hygiene
1
: a science of the establishment and maintenance of health
2
: conditions or practices (as of cleanliness) conducive to health
has poor personal hygiene Brushing your teeth regularly is an important part of good oral hygiene.
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Great Words for Scrabble
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Merriam-Webster unabridged
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Time Traveler for hygiene
The first known use of hygiene was in 1671
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