Plutonian

[ploo-toh-nee-uh n]
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adjective

Also Plu·ton·ic [ploo-ton-ik] /pluˈtɒn ɪk/. of, relating to, or resembling Pluto or the lower world; infernal.

Origin of Plutonian

1660–70; < Latin Plūtōni(us) (< Greek Ploutṓnios, derivative of Ploútōn Pluto) + -an
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British Dictionary definitions for plutonian

Plutonian

adjective

of or relating to Pluto (the god) or the underworld; infernal
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 plutonian

Plutonian

adj.

1660s, "pertaining to the god Pluto," from Latin Plutonius, from Greek Ploutonius, from Plouton "pertaining to Pluto" (see Pluto). Geological sense is from 1828 (see plutonic). Planetary sense by 1952.

Online Etymology Dictionary, © 2010 Douglas Harper