Subduplicate
Pronunciation : Sub*du"pli*cate
Part of Speech : a.
Definition : Defn: Expressed by the square root; -- said of ratios. Subduplicate ratio, the ratio of the square roots, or the square root of a ratio; thus, the subduplicate ratio of a to b is *a to *b, or *a/b.
(Math.)
Source : Webster's Unabridged Dictionary, 1913