資料來源 : Webster's Revised Unabridged Dictionary (1913)

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.]