Layer or layered may refer to:

Arts, entertainment, and media

* ''Layers'' (Kungs album) * ''Layers'' (Les McCann album) * ''Layers'' (Royce da 5′9″ album) *“Layers”, the title track of Royce da 5′9″’s sixth studio album * Layer, a female Maverick Hunter in the ''Mega Man X'' series *Layer, an element in a

digital painting Digital painting is either a physical painting made with the use of digital electronics and spray paint robotics within the digital art fine art context or pictorial art imagery made with pixels on a computer screen that mimics artworks from th ...

* ''Layer'' (film), a 2022 Russian film * LAYER, the stage name of Rei Wakana, a fictional character from ''BanG Dream!''

Science

Stratum In geology and related fields, a stratum (: strata) is a layer of rock or sediment characterized by certain lithologic properties or attributes that distinguish it from adjacent layers from which it is separated by visible surfaces known as ...

, a layer of rock or soil with internally consistent characteristics * Thermocline, a layer within a body of water where the temperature changes rapidly with depth *Layer, an area in the

neocortex The neocortex, also called the neopallium, isocortex, or the six-layered cortex, is a set of layers of the mammalian cerebral cortex involved in higher-order brain functions such as sensory perception, cognition, generation of motor commands, ...

with specific structure and connection pattern among neurons

Technology

Computing

Layer (object-oriented design) In software object-oriented design, a layer is a group of classes that have the same set of link-time module dependencies to other modules. In other words, a layer is a group of reusable components that are reusable in similar circumstances. ...

, a group of classes that have the same set of link-time module dependencies to other modules * Layers (digital image editing), used in digital image editing to separate different elements of an image * Layers, in 2D computer graphics *

Abstraction layer In computing, an abstraction layer or abstraction level is a way of hiding the working details of a subsystem. Examples of software models that use layers of abstraction include the OSI model for network protocols, OpenGL, and other graphics libra ...

, a way of hiding the implementation details of a particular set of functionality **

Internet protocol suite The Internet protocol suite, commonly known as TCP/IP, is a framework for organizing the communication protocols used in the Internet and similar computer networks according to functional criteria. The foundational protocols in the suite are ...

layers **

OSI model The Open Systems Interconnection (OSI) model is a reference model developed by the International Organization for Standardization (ISO) that "provides a common basis for the coordination of standards development for the purpose of systems inter ...

layers * Layer element, a deprecated -like tag, unique to Netscape 4 browsers * Layer of objects, a term in CAD * Map layer, a set of graphical information, especially in

geographic information system A geographic information system (GIS) consists of integrated computer hardware and Geographic information system software, software that store, manage, Spatial analysis, analyze, edit, output, and Cartographic design, visualize Geographic data ...

s * Layer (deep learning), a structure in the architecture of a deep learning model, which take information from the previous layers and then pass information to the next layer

Electronics

* Layer (electronics), a single thickness of some material covering a surface * Dual layer recording, a DVD layer *

F region The F region of the ionosphere is home to the F layer of ionization, also called the Appleton–Barnett layer, after the English physicist Edward Appleton and New Zealand physicist and meteorologist Miles Barnett. As with other ionospheric secto ...

, or Appleton Layer in telecommunications

Other uses

* Layer, a tier of archaeological deposits in an excavation * Layer hen, a hen raised to produce eggs *

Layer cake A layer cake (US English) or sandwich cake (UK English) is a cake consisting of multiple stacked sheets of cake, held together by a filling such as frosting, jam, or other preserves. Most cake recipes can be adapted for layer cakes; butte ...

, a cake consisting of stacked layers * Layered, Inc., an American software company *

Layered clothing Layered clothing is the wearing of multiple garments on top of each other, often for warmth. Layers Often, clothing combines two adjacent layers, as in the case of warm undergarments that provide both comfort and insulation. Layered clothing ...