overlay

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Related to overlayed: overlaid

overlay

an applied decoration or layer, as of gold leaf
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

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.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

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.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved

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.
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 ?
But this audacity of distance was amplified as the large continental maps were overlayed daily by weather data drawn from the time-synchronised observations of dozens of observers made possible by the new telegraph systems.
The GIS of saline-sodic class points was overlayed on the expert system predictive map, and a comparison was made of the predicted saline-sodic class v.
The irradiated samples were then homogenized and serially diluted in 0.1% peptone water and plated on xylose lysine deoxycholate agar, which had been overlayed with trypticase soy agar containing 0.6% yeast extract.
5) and elongated copulatory ducts, overlayed with small glands (Fig.
If all areas of the valve that are exposed to the process media are weld overlayed it will offer excellent corrosion resistance, without the expense of constructing the entire valve from the material.
For instance, Google Earth pictures of a neighborhood in Brooklyn, overlayed with real-time RFID data of what the people in that neighborhood were buying, could reveal which block houses the most vegetarians, the greatest number of smokers, the largest number of parents with infants, etc.
I thought the statements made by city employee Matt Rodrigues, in a Bob Welch column, regarding why Chad Drive was recently overlayed were interesting (Register-Guard, June 19).
In addition, we overlayed den coordinates onto a digitized cover map, then measured the distance from each den to the nearest wetland, stream and cornfield using ArcGIS.
These advantages include dismounted situational awareness through the shared common operating picture, readily available and configurable maps and imagery, overlayed graphics with the capability to update on the move, and configurable voice and text communications.
In Figure 3 we have quantified the amount of zero, one and two-layer coverage using red, yellow and green areas (respectively) overlayed onto the photos from Figure 1.
In brief, 20 mL of defribinated blood diluted 1:2 with Hanks buffered salt solution (HBSS) was overlayed on 15 mL of Ficoll-Paque[TM] Plus (Amersham Biosciences Uppsala, Sweden) and centrifuged (Sigma 3-16k Centrifuge, Sigma Laborzentrifugen Osterode, Germany) at 400 g for 40 minutes at 20[degrees]C.
The C-a (experimental) data from the two fracture toughness tests of varying CS specimen configuration was overlayed on the corresponding FEA data in fig.