The Collaborative International Dictionary
Subterfluent
Subterfluent \Sub*ter"flu*ent\, Subterfluous \Sub*ter"flu*ous\, a. [L. subterfluens, p. pr. of subterfluere to flow beneath; subter under + fluere to flow.] Running under or beneath. [R.]
Wiktionary
subterfluent
a. (context rare English) Running under or beneath.