Moonfish \Moon"fish`\, n. (Zool.)
(a) An American marine fish ({Vomer setipennis}); -- called
also {bluntnosed shiner}, {horsefish}, and {sunfish}.
(b) A broad, thin, silvery marine fish ({Selene vomer}); --
called also {lookdown}, and {silver moonfish}.
(c) The mola. See {Sunfish}, 1.
[1913 Webster]