(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.

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

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

plural of Jovian

Alternative form of Jovian

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

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.

(astronomy) Closer to the Sun than Jupiter is.

Further from the Sun than Jupiter is.