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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.

Investigators consider the octogenarian a “vulnerable adult” owing to her difficulty walking, pacemaker and a heart condition that required daily medication.

From The Wall Street Journal • Feb. 24, 2026

Guthrie's pacemaker was disconnected from her phone app on the night of her disappearance.

From BBC • Feb. 18, 2026

Guthrie’s pacemaker app showed a disconnect from her phone.

From The Wall Street Journal • Feb. 13, 2026

News outlets have reported that there’s evidence Nancy Guthrie’s pacemaker stopped sending data to her phone around 2 a.m.

From Los Angeles Times • Feb. 4, 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