layer

(lā'ər)
n.

1. 1. One that lays: a tile layer.
   2. A hen kept for laying eggs.
2. 1. A single thickness of a material covering a surface or forming an overlying part or segment: a layer of dust on the windowsill; a cake with four layers.
   2. A usually horizontal deposit or expanse; a stratum: layers of sedimentary rock; a layer of warm air.
   3. A depth or level: a poem with several layers of meaning.
3. Botany. A stem that is covered with soil for rooting while still part of the living plant.
4. An item of clothing worn over or under another.

v., -ered, -er·ing, -ers.

v.tr.

1. To divide or form into layers: layered gravel and charcoal to make a filter.
2. To cut (hair) into different, usually overlapping lengths.
3. Botany. To propagate (a plant) by means of a layer.
4. To wear (clothing) in layers.

v.intr.

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

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(1) One of several "drawing boards" or "canvasses" for creating elements in a picture. See layers and flatten layers.

(2) One of several levels in a communications protocol. See OSI.

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In Geographic Information Systems, a subset of non- spatial, digital map data, such as particulars of buildings.

IN BRIEF: One thickness of something over another. Also: A chicken that produces eggs.

The children enjoyed the two-layer cake at the birthday party.

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sign description: The G-hand slides across the palm of the opposite hand.

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1. stratum; a sheetlike mass of tissue of nearly uniform thickness, several of which may be superimposed, one above the other, as in the epidermis.
2. a commercial fowl which is laying eggs, i.e. a female of more than about 5 months of age, up to the stage of being a ‘spent hen’ suitable only for slaughter.

• basal l. — 1. the deepest layer of the epidermis. See also stratum basale.
— 2. the deepest layer of the uterine mucosa.
• blastodermic l. — germ layer (see below).
• clear l. — stratum lucidum; the clear translucent layer of the epidermis, just beneath the horny layer.
• columnar l. — 1. layer of rods and cones.
— 2. mantle layer.
• compact l. — the layer of the endometrium nearest the surface, containing the necks of the uterine glands.
• functional l. — the compact and spongy layers of the endometrium considered together.
• cerebellar ganglionic l. — the thin middle gray layer of the cortex of the cerebellum, consisting of a single layer of Purkinje cells.
• germ l. — any of the three primary layers of cells formed in the early development of the embryo (ectoderm, entoderm and mesoderm), from which the organs and tissues develop.
• germinative l. — any proliferative layer such as the basal layer of the epidermis or the lower layer of the claw, from which the claw grows.
• granular l. — 1. the layer of epidermis between the clear and prickle-cell layers; called also stratum granulosum.
— 2. the deep layer of the cortex of the cerebellum. — 3. the layer of follicle cells lining the theca of the vesicular ovarian follicle.
• horny l. — 1. stratum corneum; the outermost layer of the epidermis, consisting of dead and desquamating cells.
— 2. the outer, compact layer of the claw, etc.
• keratohyaline l. — granular layer (1).
• mantle l. — the middle layer of the wall of the primitive neural tube, containing primitive nerve cells and later forming the gray matter of the central nervous system.
• nervous l. — all of the retina except the pigment layer; the inner layer of the optic cup.
• prickle-cell l. — stratum spinosum; the layer of the epidermis between the granular and basal layers, marked by the presence of prickle cells.
• l. of rods and cones — a layer of the retina immediately beneath the pigment epithelium, between it and the external limiting membrane, containing the rods and cones.
• spinous l. — prickle-cell layer.
• spongy l. — the middle layer of the endometrium, containing the tortuous portions of the uterine glands.
• subendocardial l. — the layer of loose fibrous tissue uniting the endocardium and myocardium.
• zonal l. of thalamus — a layer of myelinated fibers covering the dorsal surface of the thalamus.

See words rhyming with "layer."

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Dansk (Danish)
n. - lægger, æglægger, lag, leje
v. tr. - aflægge, formere ved aflægning, nedkroge
v. intr. - aflægge, formere ved aflægning, nedkroge

idioms:

• layer of the atmosphere    lag i atmosfæren

Nederlands (Dutch)
aardlaag, laag, legkip, aflegger (botanie), in lagen aanbrengen, afleggen, (zich) in lagen splitsen, wortel schieten na afleggen (botanie)

Français (French)
n. - couche, pondeuse, (Hort) marcottage
v. tr. - (Hort) marcotter, couper (qch) en dégradé, disposer (qch) en couches
v. intr. - se former en couches, s'enraciner (des brindilles, des branches)

idioms:

• layer of the atmosphere    couche atmosphérique

Deutsch (German)
n. - Schicht, Ableger, Legehenne
v. - in Schichten anordnen

idioms:

• layer of the atmosphere    Luftschicht

Ελληνική (Greek)
n. - στρώμα, στρώση, διάστρωση, καταβολάδα, καταμόσχευμα
v. - τακτοποιώ/τοποθετώ κατά στρώματα

idioms:

• layer of the atmosphere    ατμοσφαιρικό στρώμα

Italiano (Italian)
strato, gallina da uova, pellicola

Português (Portuguese)
n. - camada (f), demão (f)
v. - mergulhar, estender em camadas

Русский (Russian)
слой, несушка, укладчик, наслаивать

Español (Spanish)
n. - capa, estrato, revestimiento, gallina ponedora, película, cubierta
v. tr. - cubrir de una capa, acodar
v. intr. - acamarse (las mieses)

idioms:

• layer of the atmosphere    capa de la atmósfera

Svenska (Swedish)
n. - lager, skikt, varv, (bot.) avläggare, liggsäd, barkkar, kar med garvämne, läggare, värphöna, vadhållare
v. - föröka sig genom avläggare, föröka genom avläggare

中文（简体）(Chinese (Simplified))
层, 地层, 阶层, 铺设者, 分层堆积, 压植, 以压条法繁殖

idioms:

• layer of the atmosphere    大气层

中文（繁體）(Chinese (Traditional))
n. - 層, 地層, 階層, 鋪設者
v. tr. - 分層堆積, 壓植
v. intr. - 以壓條法繁殖

idioms:

• layer of the atmosphere    大氣層

한국어 (Korean)
n. - 지층, 계층 , 놓는 사람[것], 알 낳는 닭, 제삭기
v. tr. - ~을 층지게 하다, 삽입하다, 휘묻이 하다
v. intr. - 층을 이루다 , 휘묻이로 번식하다

日本語 (Japanese)
n. - 層, 一重ね, 置く人, 取り木, 卵を生む鶏
v. - 幾重にも重ねる, 取り木する

idioms:

• layer of the atmosphere    大気圏

العربيه (Arabic)
‏(الاسم) فاعل Lay , مثل مركب القرميد على السطح, الدجاجه التي تضع بيضا, طبقه من الدهان أو الجص أو الطين ألخ, الغصين المرقد بالنبته الأم, النبته المرقدة (فعل) يرقد النبات, ينفصل إلى طبقات‏

עברית (Hebrew)
n. - ‮רובד, שיכבה, ענף מוברך, מטילה (תרנגולת), ענף עץ שנכפף ונשתל כדי שיכה שורש‬
v. tr. - ‮יצר שיכבה, סידר בשכבות, הבריך ענף‬
v. intr. - ‮יצר שיכבה, סידר רבדים-רבדים‬

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