Ïðåçåðâàòèâ - (ïîçäíåëàòèíñêèé praeservo - ïðåäîõðàíÿþ), îäíî èç ìåõàíè÷åñêèõ ïðîòèâîçà÷àòî÷íûõ ñðåäñòâ.