First Known Use: 1937
Dictionary
nomen dubium
noun nomen du·bi·um \-ˈdü-bē-əm, -ˈdyü-\
plural nomina du·bia \-bē-ə\
Definition of NOMEN DUBIUM
: a taxonomic name that cannot be assigned with certainty to any taxonomic group because the description is insufficient for identification and the original specimens no longer exist
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Origin of NOMEN DUBIUM
New Latin, doubtful name
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