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Neptunian

[nep-too-nee-uhn, -tyoo-]

adjective

pertaining to Neptune or the sea.

pertaining to the planet Neptune.

(often lowercase) Geology. formed by the action of water.

Origin:
1650–60; Neptune + -ian

Related forms

trans-Nep·tu·ni·an, adjective

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Neptunian is always a great word to know.

So is permeability. Does it mean:

thin, distinctive stratum useful for stratigraphic correlation

capability of a porous rock or sediment to permit the flow of fluids through its pore spaces

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Collins

World English Dictionary

Neptunian (nɛpˈtjuːnɪən)

—*adj*
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 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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