Wordnet polsko-angielski 
                        
1. (shallow-water echinoderms having soft bodies enclosed in thin spiny globular shells) 
sea urchin 
2. (sea urchins and sand dollars) 
Echinoidea, class Echinoidea: : 
1. (shallow-water echinoderms having soft bodies enclosed in thin spiny globular shells) 
sea urchin 
2. (sea urchins and sand dollars) 
Echinoidea, class Echinoidea: :