quadruplicate

Multiplied by four; quadruple.

Fourth in a group of four identical things.

One of a group of four identical things.

To multiply or be multiplied four times.

To make fourfold; double twice.

Fourfold; four times repeated: as, a quadruplicate ratio or proportion. Also quadriplicated.

One of four things corresponding in all respects to one another, or to a common original.

To make fourfold; to double twice; to quadruple.

Fourfold; doubled twice; four times repeated.

Raised to the fourth power.