(or Diffluence ) - A pattern of wind flow in which the air spreads laterally in a fan-out pattern from a central axis oriented parallel to the flow along the axis. Difluence in the upper level winds is considered a favorable condition for severe thunderstorm development. See confluence, divergence.

a pattern of wind flow in which air moves outward (in a "fan-out" pattern) away from a central axis that is oriented parallel to the general direction of the flow; opposite of confluence; difluence is not the same as divergence