Thumbnail Definition

thŭmnāl
thumbnails
noun
The nail of the thumb.
Webster's New World
An image of a graphic or document that is reduced in size so that it serves as an icon of a larger image or to allow multiple images to be viewed on a screen simultaneously or to be transmitted more rapidly.
American Heritage
A rough sketch (e.g., the size of one's thumbnail).
Wiktionary
adjective
Of, relating to, or of the size of a thumbnail.
American Heritage Medicine
Very small, brief, or concise.
A thumbnail sketch.
Webster's New World
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verb
To generate a reduced size image of (a graphic or document).
American Heritage
Wiktionary

Other Word Forms of Thumbnail

Noun

Singular:
thumbnail
Plural:
thumbnails

Origin of Thumbnail

  • thumb + nail. The phrase thumbnail sketch was first attested 1852. Verb sense attested 1930s.

    From Wiktionary

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