rhopalium

From New Latin rhopalium, from Ancient Greek ῥοπαλιον (rhopalion), diminutive of ῥόπαλον (rhópalon, “club”).

rhopalium (plural rhopalia)

1. (zoology) One of the small sensory tentacular structures of various jellyfish species.

   Synonym: tentaculocyst

• rhopalial

• “rhopalium”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.