Look up: meso-scale

1. mesoscale
   adjective relating to a meteorological phenomenon approx.1-100 kilometers in horizontal extent(cloud pattern,wind circulation etc.) Category: The cosmos
   Found on http://www.mijnwoordenboek.nl/definition
   
   
2. mesoscale
   (from the article `climate`) ...of even smaller size and shorter lifetime. In this class, vertical motions may be as significant as horizontal movement, and the Coriolis force ... ...and precipitation beyond that expected over areas of uniform vegetation. This convection creates spatial differences in the upward and downward ... Viol...
   Found on http://www.britannica.com/eb/a-z/m/77
   
   
3. MESOSCALE
   The scale of meteorological phenomena that range in size from several kilometers to around 100 kilometers. This includes MCCs, MCSs, and squall lines. Smaller phenomena are classified as microscale while larger are classified as synoptic-scale.
   Found on http://www.weather.com/glossary/m.html
   
   
4. Mesoscale
   The middle of three scales used to describe the size range of atmospheric processes. The mesoscale covers the range from a few kilometres to a few tens of kilometres. Scales smaller than the mesoscale are considered microscale processes and those larger, macroscale processes. Often loosely called the local scale.
   Found on http://www.islandnet.com/~see/weather/ge