zonal wind

zonal wind

[′zōn·əl ′wind] (meteorology) The wind, or wind component, along the local parallel of latitude, as distinguished from the meridional wind.

zonal wind

Upper zonal flow over the North Atlantic with perturbation.The wind, or wind component, along the local parallel of latitude, as distinguished from the meridional wind. The zonal wind is a large-scale westerly wind that is neither cyclonic nor anticyclonic.