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front , front / frənt/ • n. 1. the side or part of an object that presents itself to view or that is normally seen or used first; the most forward part of so… Cold Front , cold front A boundary between dense, cold air and the warmer air ahead of it, which the cold air tends to undercut as it advances. The gradient of th… Occlusion , occlusion
oc·clu·sion / əˈkloōzhən/ • n. 1. Med. the blockage or closing of a blood vessel or hollow organ. ∎ Phonet. the momentary closure of the pa… Warm Front , warm front A surface where advancing warm air displaces colder air (e.g. in mid-latitude depressions) where, owing to the convergence of the air mass… Arctic front , Arctic front The frontal boundary between cold, Arctic air and warmer air masses, usually lying to the south of it. Many depressions originate on it.… Delta Front , delta front The sloping portion of a delta, developed offshore from the bar at the mouth and passing at its toe into the pro-delta. Delta fronts are…
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NEARBY TERMS
stationary front