We found one dictionary that defines the word malignancy of unknown origin:

Medicine (1 matching dictionary)

1. malignancy of unknown origin: Medical dictionary

▸ Words similar to malignancy of unknown origin ▸ Usage examples for malignancy of unknown origin ▸ Idioms related to malignancy of unknown origin ▸ Wikipedia articles (New!) ▸ Words that often appear near malignancy of unknown origin ▸ Rhymes of malignancy of unknown origin ▸ Invented words related to malignancy of unknown origin