cardiac cycle

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noun

one complete heartbeat, consisting of one contraction and relaxation of the heart.

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Words nearby cardiac cycle

cardiac arrest, cardiac arrhythmia, cardiac asthma, cardiac catheter, cardiac cirrhosis, cardiac cycle, cardiac decompression, cardiac dysrhythmia, cardiac edema, cardiac ganglion, cardiac gland

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

How to use cardiac cycle in a sentence

It almost mirrors the Buddhist cycle of life, death, and rebirth.
The Buddhist Business of Poaching Animals for Good Karma|Brendon Hong|December 28, 2014|DAILY BEAST
Eventually, the mistletoe bush grows, blooms, and forms berries, and the cycle begins anew.
Mistletoe is the Vampire of Plants|Helen Thompson|December 21, 2014|DAILY BEAST
The Newsroom aired its final episode on Sunday, already an eternity ago in news-cycle terms.
A Few Great Men Too Many: Aaron Sorkin Doesn’t Think You Can Handle the Truth|Arthur Chu|December 21, 2014|DAILY BEAST
To break her self-destructive cycle and heal, she decides to hike 1,100 miles of the Pacific Crest Trail solo.
Exclusive: The Making of Reese Witherspoon’s Golden Globe-Nominated ‘Wild’|Marlow Stern|December 12, 2014|DAILY BEAST

Especially given that we just spent almost $4 billion during the 2013-14 election cycle?
Just What We Needed: More Campaign Spending|Mark McKinnon|December 8, 2014|DAILY BEAST
The sexual cycle can take place only within the body of one genus of mosquito, anopheles.
A Manual of Clinical Diagnosis|James Campbell Todd
Here they enter red corpuscles as young malarial parasites, and the majority pass through the asexual cycle just described.
A Manual of Clinical Diagnosis|James Campbell Todd
He knew that there was cardiac trouble in his family, but he had never realized before the meaning of his heritage.
Dope|Sax Rohmer
Still hanging to Clip's canteen, he jerked the motor-cycle away from the bushes, got into the saddle, and started the pedals.
Motor Matt's "Century" Run|Stanley R. Matthews
Matt went down, with the motor-cycle on top of him, head and shoulders over the brink of the precipice.
Motor Matt's "Century" Run|Stanley R. Matthews

Medical definitions for cardiac cycle

cardiac cycle

A complete beat of the heart, including systole and diastole and the intervals between, beginning with any event in the heart's action to the moment when that same event is repeated.

Scientific definitions for cardiac cycle

cardiac cycle

The rhythmic contraction (systole) and relaxation (diastole) of the chambers of the heart that corresponds to one heartbeat. During the cardiac cycle, blood is pumped out of the heart into the aorta and the pulmonary artery, and blood reenters the heart from the venae cavae and the pulmonary veins. The heart's valves open and close in response to pressure differences between the chambers.