Of or pertaining to the planet Neptune.
Of or pertaining to water or the sea.
Of, pertaining to, or supporting Neptunism (“a discredited theory that rocks were formed from the crystallisation of minerals in the early Earth's oceans”).
Pertaining to the astrological influence of the planet Neptune.
Of or pertaining to Neptune, the Roman god of fresh water and the sea, the counterpart of the Greek god Poseidon.
Formed by the action of water.
A person under the astrological influence of the planet Neptune.
An (imaginary) inhabitant of the planet Neptune.
A proponent of Neptunism.
Of or pertaining to hydrography.