和英辞書

発条

noun

spring (device made of flexible material), specifically the spiral torsion kind commonly used in clockwork that is coiled into a disc shape like a fern fiddlehead

彼は時計の発条を巻きました。

He wound the spring of the clock.

意味（1）

spring (device made of flexible material), specifically the spiral torsion kind commonly used in clockwork that is coiled into a disc shape like a fern fiddlehead

時計のぜんまいが緩(ゆる)んだ

時計 no zenmai ga yurundathe clock's spring wound down

意味（2）

(possibly dated) Short for 発条仕掛 (zenmai-jikake, “clockwork mechanism, clockwork”).