| Main Entry: | Rh factor |
| Part of Speech: | noun |
| Definition: | blood group antigen |
Synonyms: |
Rh antigen, Rh-negative, Rh-positive, Rh-type, Rhesus factor, antigen, blood group |
| Main Entry: | blood type |
| Part of Speech: | noun |
| Definition: | class of human blood |
Synonyms: |
blood group, blood grouping |