Definitions
a horse used to set the pace in racing
Word origin
From pace + maker.
Used in a sentence
“natural pacemaker”
“cardiac pacemaker”
“artificial pacemaker”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer1 curated clues
01“Rhythm regulator”9 letters
Not quite right?
"Search similar patterns."
P________