heart rate
Americannoun
Other Word Forms
Noun Inflected Forms
Etymology
Origin of heart rate
First recorded in 1870–75
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Featuring a built-in biometric sensor based on heart rate, these blackout sleep goggles are meant to help relax even the most harried dad.
From The Wall Street Journal • Jun. 12, 2026
She had an emergency caesarean because her baby's heart rate kept slowing down during labour.
From BBC • Jun. 4, 2026
Several can detect car crashes or spikes in heart rate as a result of tachycardia, along with such conditions as atrial fibrillation and sleep apnea.
From MarketWatch • May 28, 2026
A slowing heart rate isn’t the only factor.
From Barron's • May 23, 2026
My heart rate calmed down, and I opened my eyes slowly.
From "City of the Plague God" by Sarwat Chadda
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
