Collins COBUILD Advanced Learner's English Dictionary - murderess

(murderesses) A murderess is a woman who has murdered someone. = murderer N-COUNT MURDEROUS 1. Someone who is murderous is likely to murder someone and may already have murdered someone. This murderous lunatic could kill them both without a second thought. ADJ: usu ADJ n 2. A murderous attack or other action is very violent and intended to result in someone’s death. He made a murderous attack on his wife that evening. ADJ: usu ADJ n