Thumbnail meaning

thŭmnāl
Frequency:
The nail of the thumb.
noun
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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.
noun
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Of, relating to, or of the size of a thumbnail.
adjective
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To generate a reduced size image of (a graphic or document).
verb
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The nail of the thumb.
noun
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Very small, brief, or concise.

A thumbnail sketch.

adjective
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The nail of the thumb.
noun
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Of, relating to, or of the size of a thumbnail.
adjective
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A miniature representation of a page or image that is used to identify a file by its contents. Clicking the thumbnail opens the file. Thumbnails are an option in file managers, such as Windows Explorer, and they are found in photo editing and graphics program to quickly browse multiple images in a folder. In drawing programs and programs that deal with page layouts, thumbnails might be used to rearrange the page order by dragging and dropping them into a different sequence.
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The fingernail on the thumb.
noun
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A rough sketch (e.g., the size of one's thumbnail).
noun
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(chiefly computing) A small picture, used as a compact representation of a larger image.
noun
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verb
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Brief; cursory.

A thumbnail biography.

adjective
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Origin of thumbnail

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

    From Wiktionary