'Subterranean' definitions:
Definition of 'subterranean'
(from WordNet)
adjective
Being or operating under the surface of the earth; "subterranean passages"; "a subsurface flow of water" [syn: subterranean, subterraneous]
adjective
Lying beyond what is openly revealed or avowed (especially being kept in the background or deliberately concealed); "subterranean motives for murder"; "looked too closely for an ulterior purpose in all knowledge"- Bertrand Russell [syn: subterranean, subterraneous, ulterior]
Definition of 'Subterranean'
From: GCIDE
- Subterranean \Sub`ter*ra"ne*an\, Subterraneous \Sub`ter*ra"ne*ous\, a. [L. subterraneus; sub under + terra earth. See Terrace.] Being or lying under the surface of the earth; situated within the earth, or under ground; as, subterranean springs; a subterraneous passage. -- {Sub`ter*ra"ne*ous*ly}, adv. [1913 Webster]