Definitions
1.NounA single thickness of some material covering a surface."Wrap the loaf in two layers of aluminum foil before putting it in the oven.; After the first coat of paint dried, he applied another layer.; It's cold now but it will warm up this afternoon. Make sure you wear layers."
2.NounAn item of clothing worn under or over another."It's cold now but it will warm up this afternoon. Make sure you wear layers."
3.NounA (usually) horizontal deposit; a stratum."I find seven-layer cake a bit too rich."
4.NounOne of the items in a hierarchy."mired in layers of deceit"
5.NounOne in a stack of (initially transparent) drawing surfaces that comprise an image; used to keep elements of an image separate so that they can be modified independently from one another.
6.NounOne of the seven network switch pieces in the Open Systems Interconnection model: application, presentation, session, transport, network, data link, and physical.
7.NounAn alternative keymap accessed through a modifier key or toggle.
8.VerbTo cut or divide into layers.
9.VerbTo arrange in layers."Layer the ribbons on top of one another to make an attractive pattern."
10.NounA person who lays anything, such as tiles or a wager.
11.NounA mature female bird, insect, etc. that is able to lay eggs."As for which hen we'll cull for next Sunday's dinner, we certainly won't eat Henrietta yet — she's still a prime layer.; When dealing with an infestation of headlice, the first step is to eliminate the layers.; We keep a flock of layers and flock of broilers."
12.NounA hen kept to lay eggs; a breed of chicken bred to maximize laying output."We keep a flock of layers and flock of broilers."
13.NounA shoot of a plant, laid underground for growth.