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nomina Definition
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nomina
noun(no-men)the second of the three usual names of an ancient Roman
nomina
noun(no-men)a biological taxonomic name that is preserved by special sanction in exception to the usual rules
nomina
noun(no-men)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
nomina
noun(no-men)a proposed taxonomic name that is invalid because the group designated is not described or illustrated sufficiently for recognition, that has no nomenclatural status, and that consequently can be used as though never previously proposed