Definition of "sheet lightning" []

• Lightning that appears as a broad sheetlike illumination of parts of a thundercloud, caused by the reflection of a lightning flash. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Each time dark steel forged in Thakan'dar, below the slopes of Shayol Ghul, met red-gold Power-wrought blade, light flashed like sheet lightning in the room, a sharp bluish white that hurt the eyes."