American Heritage Dictionary of the English Language, 5th Edition
blend of hydro- and -onic
Hydronic Sentence Examples
Hydronic radiant floor heating systems use pipes embedded in your floor to circulate hot water through the home.
Hydronic radiant heat is more effective at warming the entire home than electric methods, and can result in heating bills up to 40% lower than some other heating methods.
Since radiant floor heating does mean the removal of current flooring, and in the case of hydronic radiant heating, the addition of a boiler and pumps, the best time to add radiant floor heat is during a remodel.