noun
Technical term for a coil spring, used in engineering and mechanical contexts.
この機械にはヘリカルスプリングが使われている。
A helical spring is used in this machine.
Variant with interpunct, sometimes used for clarity.
Synonymous; コイルスプリング is more common in everyday contexts, while ヘリカルスプリング is more technical.
Loanword from English 'helical spring'.