Cite
 

Meaning of subglacial

sub•gla•cial

Pronunciation: (sub-glā'shul), [key]
— adj.
  1. beneath a glacier: a subglacial stream.
  2. formerly beneath a glacier: a subglacial deposit.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.