• Webster's Revised Unabridged Dictionary
    • Megalops A large fish; the tarpum.
    • Megalops A larva, in a stage following the zoëa, in the development of most crabs. In this stage the legs and abdominal appendages have appeared, the abdomen is relatively long, and the eyes are large. Also used adjectively.
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Century Dictionary and Cyclopedia
    • n megalops In ichthyology, a genus of elopine fishes, representing the subfamily Megalopinæ of the family Elopidæ, founded by Lacépède in 1803. M. atlanticus is a large species, known as the tarpon.
    • n megalops [lowercase] A spurious genus of decapod crustaceans, representing a stage in the development of crabs in which the eyes are enormous. The term is retained as the designation of this condition, commonly known as the megalops or megalops stage. First called megalopa (W. E. Leach, 1815).
    • n megalops A genus of rove-beetles or staphylinids, containing a few small species of America and Africa.
    • n megalops A genus of reptiles.
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Webster's Revised Unabridged Dictionary
NL., fr. Gr. me`gas -a`loy, large + 'w`ps eye