(printing) The process of printing on both sides of the printed-on material during its single pass through the printing press.

plural of perfection

Able to be perfected; capable of perfection.

The possibility of achieving perfection. / (philosophy) Perfectionism.

The quality of being perfect; perfection.

comparative form of perfect: more perfect

A person who perfects something

(grammar) The state or quality of being perfective

plural of perfecter

plural of perfective