Phrases starting with the letter: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Previous word: heat index
Next word: heat of formation
Definition of: heat lightning
A fitful play of lightning unattended by thunder, usually seen near the horizon at the close of a hot day, due to the reflection from distant clouds of far–off flashes, causing a diffused glow.
Comment about this word, ask questions, or add new information about this topic: