follow Dictionary.com

Love words? Sign up for our Word of the Day!

Neptunian

[nep-too-nee-uh n, -tyoo-] /nɛpˈtu ni ən, -ˈtyu-/
adjective
1.
pertaining to Neptune or the sea.
2.
pertaining to the planet Neptune.
3.
(often lowercase) Geology. formed by the action of water.
Origin
1650-1660
1650-60; Neptune + -ian
Related forms
trans-Neptunian, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source
British Dictionary definitions for Neptunian

Neptunian

/nɛpˈtjuːnɪən/
adjective
1.
of or relating to the Roman god Neptune or the sea
2.
of, occurring on, or relating to the planet Neptune
3.
(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
Cite This Source
Word Origin and History for 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.

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source

Word of the Day

Difficulty index for Neptunian

Few English speakers likely know this word

Word Value for Neptunian

0
0
Scrabble Words With Friends

Nearby words for neptunian