English - English
Definition of flatline in English English dictionary
- to stop beating
- the disappearance of the rhythmic peaks displayed on a heart monitor
- to die
- asystole; the absence of heart contractions
- {i} reading of an EEG or EKG graphic recording; (Slang) dead person
- be flatlining to be at a low level or standard that is neither increasing nor decreasing
- {f} (Slang) be in cardiac arrest; die, cease living; register on an electronic monitor as having no heartbeat or brain activity; kill a person