Legal Definition of res nova
: a case or issue that has never before been decided by a court plaintiff admits this case is res nova in Alabama — McDermott v. Hambright, 238 So. 2d 876 (1970)
Origin and Etymology of res nova
Latin, new matter
Seen and Heard
What made you want to look up res nova? Please tell us where you read or heard it (including the quote, if possible).