Four-fold in a sentence as an adjective

Doubling the length of the key will incur a four-fold time requirement for any single RSA operation.

Moving to `gccgo` improved performance four-fold, making my unoptimized Go test code in some cases faster than my unoptimized C test code.

To build on this, the drag force varies linearly with fluid density and quadraticly with velocity, so the four-fold increase in fluid density from airplane altitude to sea level corresponds to a doubling in velocity.

Four-fold definitions

adjective

having four units or components; "quadruple rhythm has four beats per measure"; "quadruplex wire"

See also: quadruple quadruplicate quadruplex fourfold

adjective

four times as great or many; "a fourfold increase in the dosage"

See also: quadruple fourfold