hygrostat

== English == === Etymology === From hygro- +‎ -stat. === Pronunciation === IPA(key): /ˈhaɪɡɹəʊstat/ === Noun === hygrostat (plural hygrostats) A device that maintains a constant level of humidity ==== Synonyms ==== humidistat === See also === hydrostat == French == === Noun === hygrostat m (plural hygrostats) hygrostat