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rhabdocoele

American  
[rab-duh-seel] / ˈræb dəˌsil /

noun

  1. any member of the turbellarian flatworm order Neorhabdocoela, comprising both freshwater and marine species, having a simple saclike digestive system.


Etymology

Origin of rhabdocoele

1875–80; < New Latin Rhabdocoela order name; rhabdo-, -coele