neptunian

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

Near-synonym: Poseidonian

The Tomb disburd'ning, whence the Ghoſt aroſe / Of great Achilles; Such when Thracian Foes / (The Prelude of thy Fates, Troy!) he o'rethrew, / And the white hair'd Neptunian Cycnus [i.e., Neptune's son] ſlew.

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 freedom.

Where the inſulting ſtreams of Chaos roar, / Where boiſt'rous waves the rugged ſhores ſurround, / And ſtorms and whirlwinds in the air abound, / There meet two rivals of Neptunian race, / Hoſtilities begin with fierce grimace: [...]

Formed by the action of water.

neptunian dyke

A special character of these mounds [the Kess-Kess carbonate mud mounds] is the numerous Neptunian dikes. These are fracture systems, which have been filled with other sediments and minerals. It is suspected that these dikes represent spring conduits (seeps) during the formation of the mounds, and that the seeping fluids were of a hydrothermal nature [...].

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.

In several important cases, it is difficult to determine to what degree the metamorphosis has extended, since it remains uncertain whether the form and structural relations of the mountain-mass are to be considered as remains of the neptunian sedimentary formation, or as a product of the metamorphosis itself; for the original form of the neptunian, as well as of the volcanic sedimentary rocks have often become so changed by erosion, and so much alike in both classes of rocks, that this distinctive character is wholly lost; [...]

A sailor.

You braue Neptunians, you ſalt water crew, / Sea-plowing Marriners; I ſpeake to you: [...]

A proponent of Neptunism.

We are not ourselves, bigotted Neptunians or Vulcanians: we perceive difficulties whichever theory be adopted: and provided the earth be but stable under us, we are not anxiously jealous for the dignity of the trident-wielding power, or for the honour of the hammer-working deity.

Its [obsidian's] origin is warmly contested between the Neptunians and Plutonians, many of the latter denominating it a vitreous lava.

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 (the Sun) will be coloured by Neptune. The father will receive the Neptunian projection and the child with this aspect will be sensitive to the father's Neptunian side.

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 the 10th of May, the limits of the Neptunian region, or in other words the locus of Neptune as a fixed star, [...]

The planet Uranus, in like manner, detached, in process of time, a satellite, followed, in the progress of the cosmic ages, by seven others. A slow disturbing influence, supposed also to be recognized in the Neptunian system, has manifested itself in the Uranian, in an excessive obliquity of the plane of the Uranian satellites—an obliquity which considerably exceeds a right angle, [...]