a satellite of Saturn, sharing an orbit with a smaller satellite (Dione B)
Origin of Dioneafter Dione, a female Titan, mother of Aphrodite
- Greek Mythology The mother of Aphrodite by Zeus.
- A satellite of Saturn.
Origin of DioneGreek Diōnē from Zeus Di- Zeus ; see dyeu- in Indo-European roots.
- (organic chemistry, sometimes in combination) diketone