1. A layer located inside or beneath the outer surface of something; an inner stratum or level
The interior layer of the Earth is composed of molten rock.
A camada interior da Terra é composta de rocha derretida.
2. In construction or materials, a layer situated beneath the external surface or finish
The interior layer of insulation helps regulate temperature.
A camada interior de isolamento ajuda a regular a temperatura.
3. In biology, an inner layer of tissue or cell structure
The interior layer of the skin contains collagen and elastin.
A camada interior da pele contém colágeno e elastina.