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We found 21 dictionaries with English definitions that include the word heat lightning: Click on the first link on a line below to go directly to a page where "heat lightning" is defined. General (16 matching dictionaries) heat lightning: American Heritage Dictionary of the English Language [home, info] heat lightning: Collins English Dictionary [home, info] heat lightning: Vocabulary.com [home, info] heat lightning: Merriam-Webster's Online Dictionary, 11th Edition [home, info] heat-lightning, heat lightning: Wordnik [home, info] heat lightning: The Wordsmyth English Dictionary-Thesaurus [home, info] heat lightning: Infoplease Dictionary [home, info] heat lightning: Dictionary.com [home, info] heat lightning: UltraLingua English Dictionary [home, info] Heat Lightning: Wikipedia, the Free Encyclopedia [home, info] heat lightning: Rhymezone [home, info] heat lightning: Free Dictionary [home, info] heat lightning: Mnemonic Dictionary [home, info] heat lightning: WordNet 1.7 Vocabulary Helper [home, info] heat lightning: LookWAYup Translating Dictionary/Thesaurus [home, info] heat lightning: Dictionary/thesaurus [home, info] Computing (1 matching dictionary) heat lightning: Encyclopedia [home, info] Science (1 matching dictionary) HEAT LIGHTNING: Weather Glossary [home, info] Slang (1 matching dictionary) heat lightning: Urban Dictionary [home, info] Tech (2 matching dictionaries) heat lightning: Glossary of Meteorology [home, info] Heat Lightning: National Weather Service Glossary [home, info]

Quick definitions from WordNet (heat lightning) ▸ noun:  bright flashes of light near the horizon without thunder (especially on hot evenings); usually attributed to distant lightning that is reflected by clouds