The main feature of coronary care is the availability of telemetry or the continuous monitoring of the cardiac rhythm by electrocardiography.
One definition of a hook is a musical or lyrical phrase that stands out and is easily remembered. Definitions typically include some of the following: that a hook is repetitive, attention-grabbing, memorable, easy to dance to, and has commercial potential and lyrics. A hook has been defined as a part of a song, sometimes the title or key lyric line, that keeps recurring.
1. a person who fishes with a hook and line. 2. a person who tries to get something through scheming. 3. any of various large-mouthed marine fishes of the family Lophiidae, having a wormlike lure dangling from the head for attracting prey.