Reference meaning
flatline
Last updated
The disappearance of the rhythmic peaks displayed on a heart monitor.
Other meanings
2. noun
The disappearance of brain waves on an electroencephalogram.
3. noun
An unchanging state, as indicated in a graph of a variable over time.
4. noun
A line that is run low to the water from the rod tip, generally off a release clip of some type.
Source and scope
This definition is reproduced from English Wiktionary, sense en-flatline-en-noun-11cSM4as, under the CC BY-SA 4.0. It has not yet received VocabularyBase editorial review. Read the source and license details.