plural noun
Ga·​noi·​dei | \ gaˈnȯidēˌī, gəˈ-\

Definition of Ganoidei

in some classifications
: a subclass or other division of Teleostomi containing numerous extinct fishes and the living sturgeons, paddlefishes, gars (order Ginglymodi), and bowfin and having at least in the living forms a conus arteriosus, a spiral valve in the intestine, and an optic chiasma

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History and Etymology for Ganoidei

New Latin, from gan- + -oidei

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