noun, noun which may take the genitive case particle 'no'
series; in series
Primarily used in electrical contexts to describe components connected end-to-end. Also used as a no-adjective.
See also: 直列回路 (ちょくれつかいろ) · 並列
電池を直列につなぐと電圧が上がる。
Connecting batteries in series increases the voltage.
noun-modifying (irregular)
Prenominal use describing things arranged or occurring one after another, often in technical or computing contexts.
この装置は直列通信を使っている。
This device uses serial communication.