What is the meaning of Preventive?

Preventing, hindering, or acting as an obstacle to.

Carried out to deter military aggression.

Slowing the development of an illness; prophylactic.

Going before; preceding.

A thing that prevents, hinders, or acts as an obstacle to.

A thing that slows the development of an illness.

A contraceptive, especially a condom.

feminine plural of preventivo

Source: wiktionary.org