thumb·nail

[thuhm-neyl]
noun
1.
the nail of the thumb.
2.
anything quite small or brief, as a small drawing or short essay.
3.
Printing. a small, rough dummy.
4.
Also called porkchop. Journalism, Printing. a half-column portrait in a newspaper.
adjective
5.
quite small or brief; concise: a thumbnail description of Corsica.
00:10
Thumbnail is one of our favorite verbs.
So is skedaddle. Does it mean:
to run away hurriedly; flee.
to swindle, cheat, hoodwink, or hoax.
verb (used with object)
6.
to make a thumbnail sketch or description of.

Origin:
1595–1605; thumb + nail

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
Cite This Source Link To thumbnail
Collins
World English Dictionary
thumbnail (ˈθʌmˌneɪl) [Click for IPA pronunciation guide]
 
n
1.  the nail of the thumb
2.  (modifier) concise and brief: a thumbnail sketch
3.  computing a small image which can be expanded

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
FOLDOC
Computing Dictionary

thumbnail definition

file format, graphics
(From "thumbnail sketch") A file format used by Graphics Workshop for Microsoft Windows. Filename extension: ".thn".
[What's in the files?]
(1996-05-28)

The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
Cite This Source
Example sentences
The result is a thumbnail chronology of the minutiae of the wearer's daily life.
Hover over the thumbnail and the entire window expands into a preview.
At the book's end, each image is reprinted as a thumbnail and accompanied by a
  detailed caption.
There was perhaps some truth to this none too friendly thumbnail sketch.
Related Words
Copyright © 2013 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature
FAVORITES
RECENT