to layer

To cover something with a thin layer of a substance

To arrange things in levels one above another, like layers on a cake

Arrange things into layers, for example in rocks, soil, or data

A layer of gas high above Earth that absorbs the sun's harmful rays and protects life

A cake with two or more layers and sweet filling between

Thin layer of air or water next to a surface where the flow moves slowly because of rubbing

A joke idea of a fake layer in the air that takes away people's common sense

A thin clear layer covering the white of the eye and the front of the eyeball

The inner lining of the eyelid that touches the eye and continues over the white part

The lowest part of the upper atmosphere high above the Earth that reflects low radio waves

A layer of the upper atmosphere about 80 to 145 kilometres above the ground that reflects medium-length radio waves

The top part of the atmosphere that bounces radio signals for long-distance communication

The top part of the atmosphere contains many free electrons and helps radio signals travel long distances

A problem caused by people using a system the wrong way, not a fault in the computer or program

An error caused by a user rather than by the computer or network

Inner living layer of skin that makes new skin cells

A separate track of sound in a song, like piano or voice

A main group of cells in a young animal before birth that forms body parts

A layer high above Earth that bounces back radio waves for long-distance radio

The outer layer of skin made of dead cells that fall off

A layer of upper air high above the Earth that reflects medium-length radio waves

A thin non-stick layer on pans that stops food from sticking

A thin sheet of cells that covers and joins parts of plants and animals