noun-modifying (irregular)
Used as a prenominal modifier in technical or product contexts, such as dual-core, dual-monitor, dual-purpose.
This computer supports dual monitors.
デュアルコアプロセッサを搭載したスマートフォン。
A smartphone equipped with a dual-core processor.
dual band
dual mode
dual system
dual stack
dual homing
parallel slalom
dual-disk drive
Borrowed from English 'dual'.