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Definitions

pacemaker

[peys-mey-ker] / ˈpeɪsˌmeɪ kər /
NOUN
front-runner
Synonyms


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.

Eleven U.S. innovations, such as cornflakes, the implantable pacemaker and the microwave, were born from accidental discoveries.

From The Wall Street Journal • Apr. 4, 2026

The first wholly implantable pacemaker was placed in a dog in 1958 and in a human two years later.

From The Wall Street Journal • Apr. 4, 2026

Investigators are now using a device that might be able to detect Bluetooth signals coming from her pacemaker, law enforcement sources told CBS.

From BBC • Feb. 18, 2026

Although Nancy Guthrie is of sound mind, family have said she has physical ailments and uses a pacemaker.

From Los Angeles Times • Feb. 9, 2026

In medicine, a new generation of pacemaker could regulate a person’s heartbeat for decades, rather than needing to be replaced every two years.

From "Reaching for the Moon" by Katherine Johnson