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Related to heartbeat: Heartbleed

heartbeat (away) from being (something)

In a position to move into a position immediately upon the absence of one's superior or predecessor (often assumed to mean from death). The position of vice president may not seem important, but whoever it is will be a heartbeat away from being president, so we should take that into account when voting.
See also: being, heartbeat

in a heartbeat

Very quickly; as soon as is possible. If you need me, just call—I'll be there in a heartbeat. Oh, I'd move in a heartbeat—I'm so sick of the cold winters in this region.
See also: heartbeat
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

a heartbeat away from being (something)

Cliché set to be the next ruler upon the final heartbeat of the current ruler. (The decisive heartbeat would be the current ruler's last heartbeat.) The vice president is just a heartbeat away from being president. The prince was only a heartbeat away from being king.
See also: away, being, heartbeat

in a heartbeat

Fig. almost immediately. If I had the money, I would go back to college in a heartbeat. Just tell me that you need me and I'll come there in a heartbeat.
See also: heartbeat
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.

a heartbeat (away) from

very close to; on the verge of.
See also: heartbeat
Farlex Partner Idioms Dictionary © Farlex 2017

a ˈheartbeat away (from something)

very close to something: The offices are a heartbeat away from Singapore’s business centre.With all her musical talent, it seems that success is just a heartbeat away.
See also: away, heartbeat

in a ˈheartbeat

very quickly, without thinking about it: If I was offered another job, I’d leave in a heartbeat.
See also: heartbeat
Farlex Partner Idioms Dictionary © Farlex 2017

in a heartbeat

Extremely quickly. This hyperbolic expression—what could actually happen in the space of a single heartbeat?—dates from the late 1800s.
See also: heartbeat
The Dictionary of Clichés by Christine Ammer Copyright © 2013 by Christine Ammer
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References in periodicals archive ?
The aim of this paper is to propose a new method based on developed adaptive line enhancer (DALE) to monitor respiration and heartbeat of human target from UWB echo in NLOS scene.
The doctor burned away the extra pathway in his heart and isolated the problem veins, bringing his heartbeat back to normal.
"It was impossible to step outside without being recognised as visitor numbers escalated with Heartbeat's popularity," he explained.
Heartbeat connects brands with Millennial and Gen Z audiences with an engagement platform.
Its Heartbeat product suite was designed by an IT team for an IT team, with capabilities not available anywhere else on the market today.
However, unlike in our work, they did not try to optimize the heartbeat periods to improve system performance.
Caption: Archbishop Fred Hiltz invites the church to listen to its heartbeat.
To overcome this limitation Heartbeat extension was introduced to openSSL implementation of SSL/TLS.
The law has been described as the country's most restrictive abortion ban, and the "the heartbeat bill" had already courted controversy when it was passed by the Republican-led legislature in Iowa, on Thursday.
Furthermore, considering the movement of the ribcage by breathing and heartbeat, the shape of the pulse became more complicated.
The sound of a baby's heartbeat in the womb, taken during routine ultrasound scans, is captured on a chip inside the bear.
As the scientists point out, this technology can do more than just exploit the human heartbeat to determine emotional state:
The heartbeat songs have a profound effect on patients and their families and can help achieve goals determined in palliative care.
TELECOMWORLDWIRE-December 2, 2016-NewYork-Presbyterian picks Mobile Heartbeat's MH-CURE clinical smartphone application
[USPRwire, Tue Oct 18 2016] Altrone Ltd announces the launch of the My baby heartbeat listening app for iPhone, available for download on the iTunes app store for only $4.99.