plutonic

comparative more plutonic · superlative most plutonic

1. Alternative letter-case form of Plutonic.

1. not comparablechemistryContaining plutonium in a higher oxidation state.

comparative more Plutonic · superlative most Plutonic · alternative plutonic

1. GreekRomanhuman sciencesSynonym of Plutonian (“of or relating to Pluto, the Greek and Roman god of the underworld; demonic, infernal”).

   Synonyms: Hadean, Plutonian, Tartarean, Acherontic, infernal, Hadean, hellish, helly

2. broadlySynonym of Plutonian (“of, relating to, or having characteristics associated with the underworld; dark, gloomy; mournful”).

   a dark, handsome lady, of no little majesty, and rather like a plutonic Madonna

   1911, G. K. Chesterton, “The Sins of Prince Saradine”, in The Innocence of Father Brown

   Synonyms: cimmerian, tenebrous, dismal, melancholic, adumbral, blear, caliginous, cimmerian

3. broadlychemistryOf or pertaining to rocks formed deep in the Earth's crust, rather than by volcanoes at the surface of the Earth.

   These cliffs, I may remark, are basaltic, and therefore plutonic.

   1912, Arthur Conan Doyle, The Lost World […], London; New York, N.Y.: Hodder and Stoughton, →OCLC

   Synonyms: abyssal, intrusive, Plutonian

4. broadlyhistoricalgeographyOf, pertaining to, or supporting plutonism (“the theory that the rocks of the Earth were formed in fire by volcanic activity, with a continuing gradual process of weathering and erosion, then deposited on the sea bed, re-formed into layers of sedimentary rock by heat and pressure, and raised again”).

   Synonyms: Plutonian