Flow line

{
  "id": "MLC-T-MET-005644",
  "term": "Flow line",
  "field": "Meteorology and atmospheric science",
  "definition": "A line drawn on a map or diagram that indicates the direction of fluid movement, such as air or water, within a specific system. These lines are perpendicular to isobars in atmospheric flow or equipotential lines in groundwater flow. They illustrate the path a parcel of fluid would follow under the prevailing forces.",
  "url": "https://mlchart.com/terminology/meteorology/flow-line/"
}