multilayer

noun

structure with multiple distinct layers

adjective

having multiple layers

Wiktionary

adj

Etymology: Etymology tree Proto-Indo-European *mel-der. Proto-Indo-European *ml̥tós? Proto-Italic *moltos Latin multus Latin multīder. Middle English multi- English multi- Old English læġ English lay English -er English layer English multilayer From multi- + layer.

Any system of multiple layers, especially of multiple monolayers