Wordnet polsko-angielski 
                         (material with which something is impregnated
"the impregnation, whatever it was, had turned the rock blue") 
impregnation 
synonim: impregnat
 (material with which something is impregnated
"the impregnation, whatever it was, had turned the rock blue") 
impregnation 
synonim: impregnat