
1) Bio 2) Tack 3) Thn
Found on
https://www.crosswordclues.com/clue/thumbnail

1) Concise, like a sketch 2) Fingernail 3) Kind of sketch 4) Mountain in Greenland 5) Small computer image 6) The nail of the thumb 7) Tiny photo 8) Type of sketch
Found on
https://www.crosswordclues.com/clue/thumbnail

A rough sketch for a layout for a piece of print advertising.
Found on
http://archive.ifla.org/VII/s34/pubs/glossary.htm

Thumbnails are reduced-size versions of pictures, used to help in recognizing and organizing them, serving the same role for images as a normal text index does for words. In the age of digital images, visual search engines and image-organizing programs normally use thumbnails, as do most modern operating systems or desktop environments, such as Mi...
Found on
http://en.wikipedia.org/wiki/Thumbnail

(Digital cameras and photo printers) The miniature representation of a digital image that usually serves as a preview function in image editing programs.
Found on
http://www.encyclo.co.uk/local/20472

Reduced-scale version of a document or graphic. Thumbnail documents permit you to get a better idea of the page-by-page development of your publication. Web site visitors can click on the thumbnail graphic to download the full-sized illustration also the first ideas or sketches of a designer noted down for future reference.
Found on
http://www.encyclo.co.uk/local/20829

A rough, simple, often small sketch used to show the basic layout of an ad.
Found on
http://www.encyclo.co.uk/local/21023

A small, low resolution version of a larger image file that is used for quick identification or speedy editing choices
Found on
http://www.encyclo.co.uk/local/21048

A small, low resolution version of a larger image file that is used for quick identification or speedy editing choices.
Found on
http://www.rodsmith.org.uk/photographic%20glossary/rods%20photographic%20gl

A half-column picture in newspapers or a reduced size picture on a web page which, when clicked on, brings up the full sized picture or illustration.
Found on
http://www.thenewsmanual.net/Resources/glossary.html

[
n] - the nail of the thumb
Found on
http://www.webdictionary.co.uk/definition.php?query=thumbnail
noun the nail of the thumb
Found on
https://www.encyclo.co.uk/local/20974

In computing, a small version of a larger image used for reference. A clip art collection might initially present images as thumbnails, while publishing programs include the facility for designers to produce thumbnail page layouts. Web pages often show a thumbnail image which when clicked, displays a larger version of the image
Found on
https://www.encyclo.co.uk/local/21221

A small, low resolution version of a larger image file, which is used for quick identification or speedy editing choices.
Found on
https://www.encyclo.co.uk/local/22122

A small version of a larger graphic image used for indexing databases of images or to preview a very large image.
Found on
https://www.xrite.com/learning/other-resources/glossary
No exact match found.