rhynchodaeumEtymologyFrom rhyncho- + Ancient Greek ὁδαῖος (hodaîos, “on the way”), after proctodeum.rhynchodaeum means A cavity in some gastropods that contains the proboscis. Lexicurio rates it Rare gem — a strength score of 82 out of 100.nounA cavity in some gastropods that contains the proboscis.