A layer hen, a hen raised to produce eggs.

A layer of dieposits found on archaeological excavation isolated as a single context in the stratigraphy of the site

Internet protocol suite layers

OSI model layers

In abstraction, a layer is an abstract place conceived as having depth.

Thermocline, a layer within a body of water where the temperature changes rapidly with depth.

Abstraction layer

Layer de la Haye is a village in Essex, United Kingdom.

Layers (digital image editing)

Stratum, a layer of rock or soil with internally consistent characteristics.

Layering, a technique for plant propagation.

Layering (clothing), the wearing of multiple layers of clothing for practical or fashion purposes

Layered hair, a popular hair styling technique.

layer (object-oriented design).

Appleton Layer, or F region (telecommunications)

Layer (HTML tag) was an <iframe>-like tag, unique to Netscape 4 browsers. It has been deprecated and fallen out of use.