noun

1. A sailor.

2. A proponent of Neptunism.

Synonyms: Neptunist, Neptunist

adjective

1. Of or pertaining to Neptune, the Roman god of fresh water and the sea, the counterpart of the Greek god Poseidon.

2. (by extension) Of or pertaining to water or the sea.

3. (by extension) Formed by the action of water.

   “neptunian dyke”

noun

1. A person under the astrological influence of the planet Neptune.

2. An (imaginary) inhabitant of the planet Neptune.

adjective

1. Pertaining to the astrological influence of the planet Neptune.

2. Of or pertaining to the planet Neptune.