langley

noun

lang·​ley ˈlaŋ-lē 

plural langleys

: a unit of solar radiation equivalent to one gram calorie per square centimeter of irradiated surface

Examples of langley in a Sentence

Recent Examples on the Web

One langley is the amount of energy required over a square centimeter to raise the temperature of one gram of water by one degree Celsius. —Tom Skilling, chicagotribune.com, 27 June 2018

Using 42 degrees N for the latitude of Chicago, about 300 langleys of radiation per day are received on the winter solstice, versus about 950 on the summer solstice. —Tom Skilling, chicagotribune.com, 4 July 2017

Dear Tom, Several years ago, the Tribune weather page compared the amount of solar radiation, measured in langleys, on the winter and summer solstices. —Tom Skilling, chicagotribune.com, 4 July 2017

Dear Tom, Several years ago, the Tribune weather page compared the amount of solar radiation, measured in langleys, on the winter and summer solstices. —Tom Skilling, chicagotribune.com, 4 July 2017

Word History

Etymology

Samuel P. Langley

First Known Use

1947, in the meaning defined above

Geographical Definition

Langley

geographical name

Lang·​ley ˈlaŋ-lē 

municipality east-southeast of Vancouver in British Columbia, Canada population 104,177

Biographical Definition

Langley

biographical name

Lang·​ley ˈlaŋ-lē 

Samuel Pierpont 1834–1906 American astronomer and airplane pioneer