Neptunean

Adjective (1)

Neptunian (not comparable)

1. (Roman) Of or pertaining to Neptune, the Roman god of fresh water and the sea, the counterpart of the Greek god Poseidon.
   • Near-synonym: Poseidonian

   Synonyms:

   Poseidonian

2. (broadly, rare) Of or pertaining to water or the sea.
   • Tyrian garbs, / Neptunian Albion's high teſtaceous food [i.e., oysters], / And flavour'd Chian wines with incenſe fum'd / To ſlake Patrician thirſt: for theſe, their rights / In the vile ſtreets they proſtitute to ſale; / Their ancient rights, their dignities, their laws, / Their native glorious...1740, John Dyer, “The Ruins of Rome. A Poem.”, in Poems. … Viz. I. Grongar Hill. II. The Ruins of Rome. III. The Fleece, in Four Books, London: Printed by John Hughs, for Messrs. R[obert] and J[ames]...
3. (broadly) Formed by the action of water.
   • neptunian dyke
4. (broadly, historical) Of, pertaining to, or supporting Neptunism (“a discredited theory that rocks were formed from the crystallisation of minerals in the early Earth's oceans”).
   • In the Neptunian ſyſtem it is ſuppoſed that the poſitions of the ſtrata have been determined, partly by the figure of the baſe or ground on which they have been depoſited, and partly by their depoſition having been a ſpecies of cryſtallization.1802, [John Murray], “Part III. Of the Arguments in Support of the Huttonian and Neptunian Theories, from the Positions of the Strata of the Globe.”, in A Comparative View of the Huttonian and...

Adjective (2)

Neptunian (not comparable)

1. Pertaining to the astrological influence of the planet Neptune.
   • The Sun represents a masculine principle—assertion, expression and spirit. Neptune touching it brings in the qualities of sensitivity and creativity as well as weakness, dissolution, dissipation and elusiveness. If we take the Sun to represent the image of father, the person's experience of father...1987, Liz Greene, Howard Sasportas, “Your Inborn Images”, in The Development of the Personality: Seminars in Psychological Astrology, volume 1, Boston, Mass.: Red Wheel/Weiser, →ISBN, part 1 (The...
2. Of or pertaining to the planet Neptune.
   • After making a sketch of the Neptunian regions for the dates from 1790 to 1800, I soon came to the conclusion that the nights of the 8th and 10th of May, 1795, were the only ones that afforded a reasonable prospect of furnishing an observation of Neptune, and accordingly computed for the evening of...1851, Sears C[ook] Walker, “Researches Relative to the Planet Neptune”, in Smithsonian Contributions to Knowledge, volume II, Washington, D.C.: Published by the Smithsonian Institution, →OCLC...

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