[ U ] the state of being malignant恶性;恶意
The malignancy of these tumours makes them difficult to treat.这些肿瘤为恶性,很难治疗。
[ C ] a growth that is likely to get worse and lead to death恶性生长,恶性肿瘤
Tests revealed a malignancy that had to be removed.检查发现了一个恶性肿瘤,必须切除。