[1] : The Collaborative International Dictionary of English v.0.48

ganoidei \ganoi"dei\, n. pl. nl. see ganoid. zool.
   one of the subclasses of fishes. they have an arterial cone
   and bulb, spiral intestinal valve, and the optic nerves
   united by a chiasma. many of the species are covered with
   bony plates, or with ganoid scales; others have cycloid
   scales.
   1913 webster

   note: they were numerous, and some of them of large size, in
         early geological periods; but they are represented by
         comparatively few living species, most of which inhabit
         fresh waters, as the bowfin, gar pike, bichir,
         ceratodus, paddle fish, and sturgeon.
         1913 webster
see also:
ganoid 

[2] : WordNet (r) 2.0

ganoidei
     n : a group of mostly extinct primitive bony fishes
         characterized by armor-like bony scales syn: order
         ganoidei
see also:
order ganoidei 

Ganoidei >> G Words
Ganoidei, definition of term: Ganoidei
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