Jupiter /ˈd͡ʒupɪtɚ/noun 3exclamation 1 noun3 •The fifth and by far the largest planet in the Solar System, a gas giant, represented by the symbol ♃ in astronomy. Jupiter is known for its Great Red Spot and many moons including the Galilean moons.Jupiter condensed out of the dust and gas that became our solar system at a distance where water remains frozen. — 1990 •(rare) Azure (blue), in the postmedieval practice of blazoning the tinctures of certain sovereigns' (especially British monarchs') coats as planets.5. Jupiter, a Mace of Majestry in Bend Sol. — 1693 •(no longer used) Tin. exclamation1 •Synonym of by Jupiter."Jupiter!" murmured Crediton. It is unusual for the senior hand to leave even one of the five cards to which he is entitled. It indicated an unusually strong hand. — 1923
