He came to be identified with the Greek Zeus. Learn more.

Jupiter definition: The definition of Jupiter is the largest planet in our solar system, or the supreme god in Roman mythology. Facts About Jupiter Jupiter was named for the Roman king of the gods.

Jupiter n. 1.

Jupiter is one of the brightest objects visible to the naked eye in the night sky, and has been known to ancient civilizations since before recorded history. Jupiter definition, the supreme deity of the ancient Romans: the god of the heavens and of weather. Jupiter is the fifth planet from the Sun and the largest in the Solar System.It is a gas giant with a mass one-thousandth that of the Sun, but two-and-a-half times that of all the other planets in the Solar System combined. Jupiter definition: 1. the planet fifth in order of distance from the Sun, after Mars and before Saturn 2. in Roman…. See more.

Roman Mythology The supreme god, patron of the Roman state and brother and husband of Juno. Jupiter definition is - the chief Roman god, husband of Juno, and god of light, of the sky and weather, and of the state and its welfare and its laws. Jupiter synonyms, Jupiter pronunciation, Jupiter translation, English dictionary definition of Jupiter.