# flatliner

> English word · Noun

## Definitions
1. An angler who uses a flatline.
2. A patient with no heartbeat.

## Etymology
From flatline + -er.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/flatliner