We found 2 dictionaries that define the word forked lightnings:

General (2 matching dictionaries)

1. forked lightnings: Collins English Dictionary
2. forked lightnings: Vocabulary.com

(Note: See forked_lightning as well.)

Definitions from Wiktionary (forked lightning) ▸ noun:  Fork lightning. ▸ Also see forked_lightning ▸ Words similar to forked lightnings ▸ Usage examples for forked lightnings ▸ Idioms related to forked lightnings ▸ Wikipedia articles (New!) ▸ Words that often appear near forked lightnings ▸ Rhymes of forked lightnings ▸ Invented words related to forked lightnings