overlay

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overlay

an applied decoration or layer, as of gold leaf

overlay

[′ō·vər‚lā]
(civil engineering)
A repair topping of asphalt or concrete placed on a worn roadway.
(computer science)
A technique for bringing routines into high-speed storage from some other form of storage during processing, so that several routines will occupy the same storage locations at different times; overlay is used when the total storage requirements for instructions exceed the available main storage.
(engineering)
Nonwoven fibrous mat (glass or other fiber) used as the top layer in a cloth or mat lay-up to give smooth finish to plastic products or to minimize the fibrous pattern on the surface. Also known as surfacing mat.
An ornamental covering, as of wood or metal.
(graphic arts)
A sheet attached to copy or artwork and containing special instructions about reproduction or arrangement.
A transparent or translucent film attached to artwork and carrying additional detail to be reproduced; in multicolor printing these overlays may represent the separation of the colors to be printed.

overlay

As it pertains to the pavements, it is an additional surface course placed on existing pavement either with or without an intermediate base or sub-base course, usually to strengthen the pavement or restore the profile of the surface.

overlay

(1) A preprinted, precut form placed over a screen, key or tablet for identification purposes. See keyboard template.

(2) A program segment called into memory when required. When a program is larger than the memory capacity of the machine, parts of the program not in constant use can be set up as overlays. Each overlay called in overwrites the existing overlay in memory. Virtual memory provides for automatic overlays. See virtual memory.
References in periodicals archive ?
Srinivasan, "Resilient multicast using overlays," IEEE/ACM Transactions on Networking, vol.
This gives customers more flexibility with white box overlay options.
Construction of the concrete overlays was successfully executed on time.
The transparent touch screen overlays will work behind a glass substrate of up to 10mm thickness and plastic up to 4mm.
Many of the surfaces that lend themselves to an overlay are flat, but you can easily form the piece to lie flat on a curved surface.
The number of colours available with each system depends on how the overlays are used.
The Digital CAD Overlay allows operators to import a DXF file and create a Nominal Graphical Image.
Unlike, acrylic nails, gel overlays won't lengthen your nails, but they do strengthen and improve the appearance of your natural nails.
The goal of this paper is to frame such a discussion and provide further thought on the implications of overlays for Internet architecture, industry structure/business strategy, and public policy.
Such overlays are designed to be installed at thicknesses of 1/8 to 3/4 inch.
ACC started the switch from paper briefs and wooden, pull-out display boards to SMART Board interactive whiteboards and SMART Board for Flat-Panel Displays interactive overlays in 1999.
The ACT then imports the products into their ASAS as overlays on which to employ software applications such as a data fusion server (DFS) to template units or events.