The meaning of LAYER is one that lays something (such as a worker who lays brick or a hen that lays eggs). How to use layer in a sentence.

Aug 1, 2023 · The four main layers of the Earth are the crust, mantle, outer core, and inner core. The Earth, like an onion, consists of several concentric layers, each with its own unique set of properties …

The noun layer describes a thin piece that's stacked on other thin pieces, like a layer of noodles in a lasagna dish. You can also apply a layer of paint to make your wall color more vivid. Layer can also …

1. To form or come apart as layers. 2. Botany To take root as a result of layering.

If something such as a system or an idea has many layers, it has many different levels or parts.

We put on two layers of paint. The road was built up with layers of crushed stone and asphalt.

Nov 6, 2025 · Explore Earth’s layers — crust, mantle, outer and inner core. Learn their composition, depth, and how scientists study Earth’s interior using seismic waves.

LAYER definition: a thickness of some material laid on or spread over a surface. See examples of layer used in a sentence.

layer (of something) a level or part within a system or set of ideas. There were too many layers of management in the company. You've got to fight your way through layer upon layer of bureaucracy. …

If you layer something, you arrange it in layers. Layer the potatoes, asparagus, and salmon in the tin.