Collins COBUILD Advanced Learner's English Dictionary - bleeding edge

Note: The spelling 'bleeding-edge' is used for meaning 2. 1. If you are at the bleeding edge of a particular field of activity, you are involved in its most advanced or most exciting developments. McNally has spent 17 years at the bleeding edge of computing. N-SING 2. Bleeding-edge equipment or technology is the most advanced that there is in a particular field. ...an RAF facility with bleeding-edge electronics and communications systems. ADJ