hy ‧ giene /ˈhaɪdʒiːn/ BrE AmE noun [uncountable]
[ Date: 1600-1700 ; Language: French ; Origin: hygène , from Greek hygieina , from hygies 'healthy' ]
the practice of keeping yourself and the things around you clean in order to prevent diseases:
the importance of personal hygiene
oral/dental hygiene
a food hygiene training course
good/poor/proper hygiene
The Consumers’ Association blames poor hygiene standards.