subquadruple
Sub*quad"ru*ple, a. Defn: Containing one part of four; in the ratio of one to four; as, subquadruple proportion. Bp. Wilkins.
Sub*quad"ru*ple, a. Defn: Containing one part of four; in the ratio of one to four; as, subquadruple proportion. Bp. Wilkins.