(astronomy) Pertaining to the planet Jupiter. / (Roman mythology) Pertaining to the Roman god Jove or Jupiter (the counterpart of the Greek god Zeus); Jove-like; befitting Jupiter.

Flavius Jovianus Augustus (331–364), a Roman emperor.

(chiefly science fiction) An imaginary inhabitant of the planet Jupiter.

plural of Jovian

Alternative form of Jovian

Any of the four gas giant planets in the Solar System: Jupiter, Uranus, Saturn, or Neptune.

Further from the Sun than Jupiter is.

(astronomy) Closer to the Sun than Jupiter is.

plural of Jovian planet

(planetology) A planet whose characteristics are similar to Jupiter, but which orbits its parent star much more closely and thus has higher temperatures.