资料来源 : Webster's Revised Unabridged Dictionary (1913)

Lookdown \Look"down`\, n. (Zo["o]l.)
   See {Moonfish}
   (b) .

资料来源 : WordNet®

lookdown
     n : similar to moonfish but with eyes high on the truncated
         forehead [syn: {lookdown fish}, {Selene vomer}]