Definition of nomen dubium
nomina dubiaplay \-bē-ə\
: 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
Origin and Etymology of nomen dubium
New Latin, doubtful name
First Known Use: 1937
Seen and Heard
What made you want to look up nomen dubium? Please tell us where you read or heard it (including the quote, if possible).