1. Plural of langley; a unit of solar radiation energy equal to one gram calorie per square centimeter, used in meteorology and solar physics.
Usage: technical; scientific; named after Samuel Pierpont Langley

Examples

• The solar panel received approximately 5 langleys of radiation per day.
• Scientists measured the langleys of energy hitting Earth's atmosphere.
• The instrument recorded langleys to assess solar intensity at different altitudes.
• Climate models often use langleys as a standard unit for solar irradiance calculations.