The Collaborative International Dictionary of English v.0.48:
Edible \Ed"i*ble\, a. [L. edibilis, fr. edere to eat. See
Fit to be eaten as food; eatable; esculent; as, edible
fishes. --Bacon. -- n. Anything edible.
Edible bird's nest. See Bird's nest, 2.
Edible crab (Zo["o]l.), any species of crab used as food,
esp. the American blue crab (Callinectes hastatus). See
Edible frog (Zo["o]l.), the common European frog (Rana
esculenta), used as food.
Edible snail (Zo["o]l.), any snail used as food, esp.
Helix pomatia and H. aspersa of Europe.