balance wheel
noun
,
Horology
1.
balance
(def 15).
Origin
1660-70
Examples from the web for
balance wheel
However, the
balance wheel
metaphor has another, perhaps unintended meaning.
Her chief function is to act as a sort of
balance wheel
for her husband.
British Dictionary definitions for
balance wheel
balance wheel
noun
1.
a wheel oscillating against the hairspring of a timepiece, thereby regulating its beat