plural noun
Mi·cro·cy·pri·ni | \-rēˌnī\

Definition of Microcyprini 

: an order or other division of small teleost fishes resembling but somewhat more advanced than the Haplomi and including the killifishes and topminnows and various related families of chiefly freshwater and brackish-water fishes

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History and Etymology for Microcyprini

New Latin, from micr- + Latin cyprini, plural of cyprinus carp

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