Pronunciation: (lang'lē),[key] —n. 1. Edmund of. See York, Edmund of Langley, 1st Duke of. 2. Samuel Pier•pont Pronunciation: (pēr'pont),[key] 1834–1906, U.S. astronomer, physicist, and pioneer in aeronautics.
3. William. See Langland, William. 4. a city in SW British Columbia, in SW Canada, near Vancouver. 15,124.
Pronunciation: (lang'lē),[key] —n.Physics. for electromagnetic radiation incident upon a surface, a value of energy per unit area equal to one calorie per square centimeter.