Definition of HVAC abbreviation from the Oxford Advanced Learner's Dictionary



BrE BrE//ˈeɪtʃvæk//
; NAmE NAmE//ˈeɪtʃvæk//
(especially US English)
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heating, ventilation and air conditioning (used to refer to a system that can heat or cool a building or allow fresh air to move around) a new, efficient HVAC system