from the GNU version of the Collaborative International Dictionary of English
- n.pl. An order of holothurians in which the internal respiratory organs are wanting; -- called also Apoda or Apodes.
from The Century Dictionary and Cyclopedia
- An order of holothurians; one of two orders into which the class Holothuroidea is divisible (the other being Dipneumona or Pneumonophora).
Sorry, no etymologies found.