Neptunian

[nep-too-nee-uh n, -tyoo-]

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adjective

pertaining to Neptune or the sea.
pertaining to the planet Neptune.
(often lowercase) Geology. formed by the action of water.

Origin of Neptunian

First recorded in 1650–60; Neptune + -ian

Related formstrans-Nep·tu·ni·an, adjective

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for neptunian

Historical Examples

There was nothing to do then but to join the Neptunian assault.
The Secret of the Ninth Planet
Donald Allen Wollheim
Though the account is very interesting, I do not perceive its exact bearing on the Neptunian and Plutonian hypotheses.
Summary Narrative of an Exploratory Expedition to the Sources of the Mississippi River, in 1820
Henry Rowe Schoolcraft
This theory of Werner's was called the "Neptunian," and for many years enjoyed much popularity.
A Manual of Elementary Geology
Charles Lyell.
The rocks thus deposited were called Neptunian by the older geologists.
The World Before the Deluge
Louis Figuier
This beautiful instrument afforded to its maker, October 10, 1846, a cursory view of a Neptunian attendant.
A Popular History of Astronomy During the Nineteenth Century
Agnes M. (Agnes Mary) Clerke

British Dictionary definitions for neptunian

Neptunian

adjective

of or relating to the Roman god Neptune or the sea
of, occurring on, or relating to the planet Neptune
geology (of sedimentary rock formations such as dykes) formed under water

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for neptunian

Neptunian

adj.

1650s as "pertaining to the god Neptune;" 1794 in the geological sense, referring to actions of water, from Neptune + -ian. Usually opposed to volcanic or plutonic. As a noun meaning "inhabitant of the planet Neptune" it is recorded from 1870.

Neptunian

Origin of .css-1fxfie5{font-size:22px;}@media (max-width:768px){.css-1fxfie5{font-size:18px;margin:0 10px 10px 0;word-break:break-all;word-wrap:break-word;-webkit-hyphens:auto;-moz-hyphens:auto;-ms-hyphens:auto;hyphens:auto;line-height:22px;}}Neptunian

Examples from the Web for neptunian

Historical Examples

There was nothing to do then but to join the Neptunian assault.

Though the account is very interesting, I do not perceive its exact bearing on the Neptunian and Plutonian hypotheses.

This theory of Werner's was called the "Neptunian," and for many years enjoyed much popularity.

The rocks thus deposited were called Neptunian by the older geologists.

This beautiful instrument afforded to its maker, October 10, 1846, a cursory view of a Neptunian attendant.

Neptunian

Word Origin and History for neptunian

Neptunian

adj.

Origin of Neptunian