Wordnet polsko-angielski 
                         (small translucent lancet-shaped burrowing marine animal
primitive forerunner of the vertebrates) 
lancelet, amphioxus 
synonim: szparoskrzelec lancetowaty
 (small translucent lancet-shaped burrowing marine animal
primitive forerunner of the vertebrates) 
lancelet, amphioxus 
synonim: szparoskrzelec lancetowaty