/ ˈɪmpregneɪt; NAmE ɪmˈpreg-/ verb [ vn ]
1.
[ usually passive ] impregnate sth (with sth) to make a substance spread through an area so that the area is full of the substance :
The pad is impregnated with insecticide.
2.
( formal ) to make a woman or female animal pregnant
► im·preg·na·tion / ˌɪmpregˈneɪʃn; NAmE / noun [ U ]
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WORD ORIGIN
early 17th cent. (in the sense fill ; earlier ( Middle English ) as impregnation ): from late Latin impregnat- made pregnant, from the verb impregnare .