follow Dictionary.com

Dictionary.com's Word of the Year is...

reverse lightning

noun
1.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source
reverse lightning in Science
reverse lightning  
A flash of light in the sky caused by an electrical discharge from the Earth's surface to a cloud. Reverse lightning is so called because lightning typically occurs between clouds or travels from a cloud to the Earth's surface. Also called return stroke. See note at lightning.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source

Word of the Day

Difficulty index for reverse lightning

Few English speakers likely know this word

Word Value for reverse

10
11
Scrabble Words With Friends