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| an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle. |
| a gadget; dingus; thingumbob. |
front (frŭnt) Pronunciation Key
(click for larger image in new window) The boundary between two air masses that have different temperatures or humidity. In the mid-latitude areas of the Earth, where warm tropical air meets cooler polar air, the systems of fronts define the weather and often cause precipitation to form. Warm air, being lighter than cold air, tends to rise, cool, and condense along such boundaries, forming rain or snow. See also cold front, occluded front, polar front, stationary front, warm front. |
In meteorology, the line that forms the boundary between two air masses. Unless they are very similar in temperature and humidity, they will not mix.
Note: Fronts usually produce unstable weather.
front definition
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