from The Century Dictionary and Cyclopedia
- n. A genus of discoidal jelly-fishes, of the family Aureliidæ, with large oral arms with branched vessels and two marginal tentacles. D. lobata of the Adriatic is an example.
Sorry, no etymologies found.
For the evolutionary biologist in your life, might I suggest sending a card featuring a yule discomedusa with a copy of, naturally,