noun
( plural john dorys )
Usage: usually capitalized J&D
Etymology: from the name John + dory (fish)
: a marine fish of the family Zeidae: as
a. : a common European food fish ( Zeus faber ) that is yellow to olive in color and has an oval compressed body, long dorsal spines, and a dark spot on each side
b. : a closely related and possibly identical fish that is sometimes considered a separate species ( Z. capensis ) and is widely distributed in southern seas, being taken often in some quantity off southern Africa, Australia, and New Zealand