Plutonian是什么意思

Plutonian

[plʊ'tonɪən]

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.