layer

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layer

1. one of four or more levels of vegetation defined in ecological studies: the ground or moss layer, the field or herb layer, the shrub layer, and one or more tree layers
2. a laying hen
3. Horticulture
a. a shoot or branch rooted during layering
b. a plant produced as a result of layering
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

layer

[′lā·ər]
(computer science)
One of the divisions within which components or functions are isolated in a computer system with layered architecture or a communications system with layered protocols.
(geology)
A tabular body of rock, ice, sediment, or soil lying parallel to the supporting surface and distinctly limited above and below.
(geophysics)
One of several strata of ionized air, some of which exist only during the daytime, occurring at altitudes between 30 and 250 miles (50 and 400 kilometers); the layers reflect radio waves at certain frequencies and partially absorb others.
(metallurgy)
The stratum of weld metal consisting of one or more passes and lying parallel to the welding surface.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

course

course, 1
1. A layer of masonry units running horizontally in a wall or, much less commonly, curved over an arch; it is bonded with mortar.
2. A continuous row or layer of material, as shingles, tiles, etc.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.

layer

This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)

layer

(1) One of seven levels of processing in a network protocol. See OSI model.

(2) A tier. Layers tend to refer to software that comprise a hierarchy of code, each layer communicating with the one above or below it.

(3) One of several "drawing boards" or "canvasses" for creating elements in a picture. See layers and flatten layers.
Copyright © 1981-2019 by The Computer Language Company Inc. All Rights reserved. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction is strictly prohibited without permission from the publisher.
References in periodicals archive ?
Because of the dense packing of PRC nuclei within the outer nuclear layer, such estimates are probably best obtained using the optical rather than the physical disector.
DHE was absent in the control group (Figure 5(a)) but was strongly detected in the LE group, mainly in the outer nuclear layer, inner nuclear layer, and ganglion cell layer (Figure 5(b)).
Persistent scotomas in AMN have been documented to persist over a 6-month period and related to irreversible thinning of the outer nuclear layer and incomplete restoration of the interdigitation zone [15, 16].
ILM, internal limiting membrane and inner border of the RNFL layer; RNFL, outer border of the retinal nerve fiber layer; GCL, outer border of the ganglion cell layer; IPL, outer border of the inner plexiform layer; INL, outer border of the inner nuclear layer; OPL, outer border of the outer nuclear layer; ELM, external limiting membrane--outer border of the outer nuclear layer; RPE, retina pigment epithelium; BM, Bruch's membrane.
Individual retinal layers are labeled: nerve fiber layer (NFL), ganglion cell layer (GCL), inner plexiform layer (IPL), inner nuclear layer (INL), outer plexiform layer (OPL), outer nuclear layer (ONL), external limiting membrane (ELM), inner segments (IS), inner segment ellipsoid (ISe), outer segments (OS), retinal pigment epithelium (RPE), and choroid.
Correspondingly, we observed the increased thickness of the outer nuclear layer because of increased oozing and the reduced thickness of the photoreceptor layer because of cell injury on OCT before treatment.
Nomenclature ERG: Electroretinography RRD: Rhegmatogenous retinal detachment IHC: Immunohistochemistry ONL: Outer nuclear layer. https://doi.org/10.1155/2017/4046597
At first, we hypothesized that visual outcome would be associated with the area of the outer macular layer, as this contains the outer nuclear layer and the photoreceptor cells, but this hypothesis was not borne out by the data.
In the retinal sections of control groups, normal appearance of the internal and outer nuclear layers and the normal organization of the retinal ganglion cell layer are seen.
Cysts were also observed to a much lesser extent in the outer plexiform and outer nuclear layers. CFT was 324 [micro]m in the left eye and 456 [micro]m in the right eye.