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Meaning of cryptovolcanic

cryp•to•vol•can•ic

Pronunciation: (krip"tō-vol-kan'ik), [key]
— adj. Geol.
  1. of or pertaining to a rock structure providing indirect or incomplete evidence of volcanism.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.