Front: The transition zone or interface between two air masses of different densities, which usually means different temperatures. For example, the area of convergence between warm, moist air and cool, dry air.

 

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Front: The transition zone or interface between two air masses of different densities, which usually means different temperatures. For example, the area of convergence between warm, moist air and c . . . View Full Definition

Frontolysis: The destruction or dying of a front where the transition zone is losing its contrasting properties. The opposite of frontogenesis.

Front Curtain Synchronization: When the flash fires an instant after the front curtain of a focal plane shutter has completed its travel across the film plane.

Katafront: A front where the warm air descends the frontal surface, except in the low layers of the atmosphere.

Front Element Focusing: System of lens focusing in which only the front component of a compound lens moves backward and forward to adjust focus.

Frontogenesis: The birth or creation of a front. This occurs when two adjacent air masses exhibiting different densities and temperatures are brought together by prevailing winds, creating a front. It coul . . . View Full Definition

Frontal Passage: It is the passage of a front over a specific point on the surface. It is reflected by the change in dew point and temperature, the shift in wind direction, and the change in atmospheric pres . . . View Full Definition

Upfront: The first selling wave for the broadcast or cable networks, and syndication. It usually occurs in the spring after the new fall schedules have been announced and presented to major advertise . . . View Full Definition

Front Vowel: In linguistics, a vowel made with the ridge of the tongue located near the front of the oral cavity.

Frontrunning: If you trade stock or other investments because you know that an upcoming transaction by a third party is likely to affect the market price of the investment, you're frontrunning. Because fr . . . View Full Definition