Wiktionary
adv. 1 In a hygienic manner. 2 In relation to hygiene.
WordNet
adv. in a hygienic manner; "the body must cared for hygienically" [ant: unhygienically]
Wikipedia
<!-- This long comment was added to the page to prevent it being listed on Special:Shortpages. It and the accompanying monitoring template were generated via Template:Longcomment. Please do not remove the monitor template without removing the comment as well.
Usage examples of "hygienically".
The removable rug is an improvement hygienically over the fixed carpet.
If they lived hygienically in these respects, the work which was a drag might be an inspiration.
In fact, except where actual nasal defects exist, the frequency of colds is usually a fair indication of how hygienically a person is living.
It is caused by failure to take the proper amount of outdoor exercise, to take enough water daily, to live on the proper diet, to live hygienically, or because of wrong methods of dress.
Normally the Emergents liked to get results from computer and head-up displays, all graphics and hygienically filtered data.