Wordnet polsko-angielski 
                         (a boulder that has been carried by a glacier to a place far distant from its place of origin) 
glacial boulder 
synonim: eratyk
synonim: narzutnik
synonim: narzutowiec
Słownik środowiska polsko-angielski 
                        glacial erratic
Słownik techniczny polsko-angielski 
                        erratic (boulder)