What is another word for active front?
Pronunciation: [ˈaktɪv fɹˈʌnt] (IPA) 
An active front is a term used in atmospheric sciences to describe the boundary between two air masses that have different temperature, moisture, and pressure characteristics. There are a few synonyms for this term, including weather front, frontal boundary, and storm front. Weather front is the most commonly used term in popular media and refers to the same phenomenon as an active front. Frontal boundary also describes the same thing, with the added emphasis on the line that separates the two air masses. Finally, storm front is a more colloquial term that emphasizes the potential for storms and severe weather that can occur along the active front.
