dual-layer
adjectiveUK /ˈdjuːəl ˈleɪə/
US /ˈduːəl ˈleɪər/
Having two separate layers or levels stacked together.
The dual-layer cake has a chocolate bottom and a vanilla top.
RELATED WORDS
OTHER MEANINGS
2. In technology, using two different methods or systems at the same time for extra safety or function.
The dual-layer security system checks both a password and a fingerprint.
3. A DVD or disc that stores data on two recording levels to hold more information.
This dual-layer disc can hold a whole season of the show.
4. Having two distinct parts that work together, such as a dual-layer fabric for warmth and waterproofing.
Her dual-layer jacket keeps her warm and dry in the rain.