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Definitions from the Web

Flat Line

Part of speech: noun/verb

Senses:

1. A noun referring to a straight, horizontal line that is devoid of any incline or slope.
2. A noun representing a complete absence of electrical activity in the heart, typically indicating cardiac arrest.
3. A verb describing the act of drawing, marking, or displaying a straight, level line.
4. A verb denoting the cessation of electrical activity in the heart leading to cardiac arrest.

Popular usage:

A popular usage of the term "flat line" is in the medical field, specifically in the context of monitoring heart activity.

Sample sentences:

1. The graph showed a perfect flat line, indicating no change in elevation.
2. The patient's heart displayed a flat line on the monitor, and the medical team immediately began resuscitation efforts.
3. The architect used a ruler to flat line the edges of the blueprint.
4. When the paramedics arrived, they discovered the man had flatlined, and they promptly initiated life-saving procedures.

Local usage:

In certain regions, "flat line" might also refer to a public transportation route that remains within a specific area, without extending to other neighborhoods.

Related products on Amazon:

• Flat Line Markers
• Flat Line Drawing Books
• Defibrillators