a spot or stain, especially of ink on paper.
a blemish on a person’s character or reputation:
He had been haunted by a blot on his past.
Archaic. an erasure or obliteration, as in a writing.
to spot, stain, soil, or the like.
to darken; make dim; obscure or eclipse (usually followed by out):
We watched as the moon blotted out the sun.
to dry with absorbent paper or the like:
to blot the wet pane.
to remove with absorbent paper or the like.
to make a blot; spread ink, dye, etc., in a stain:
The more slowly I write, the more this pen blots.
to become blotted or stained:
This paper blots too easily.
Chemistry. to transfer an array of separated components of a mixture to a chemically treated paper for analysis.
Compare gel, gel electrophoresis.
blot out,

to make indistinguishable; obliterate:
to blot out a name from the record.
to wipe out completely; destroy:
Whole cities were blotted out by bombs.

Backgammon. an exposed piece liable to be taken or forfeited.
Archaic. an exposed or weak point, as in an argument or course of action.
Contemporary Examples

A Video History of U.N. Outbursts The Daily Beast Video September 21, 2009
A Disaster’s Silver Lining Bill McKibben April 29, 2010
How Do We Deal with the Baseless Hatred at the Western Wall? Emily L. Hauser July 11, 2013
How To Take Purim Seriously Shaul Magid February 20, 2013

Historical Examples

Katrine Elinor Macartney Lane
Modern Painters Volume I (of V) John Ruskin
The Life of Napoleon Bonaparte William Milligan Sloane
The House Under the Sea Sir Max Pemberton
Saturday’s Child Kathleen Norris
The Mysterious Murder of Pearl Bryan Unknown

a stain or spot of ink, paint, dirt, etc
something that spoils or detracts from the beauty or worth of something
a blemish or stain on one’s character or reputation
verb blots, blotting, blotted
(of ink, dye, etc) to form spots or blobs on (a material) or (of a person) to cause such spots or blobs to form on (a material)
(informal) blot one’s copybook, to spoil one’s reputation by making a mistake, offending against social customs, etc
(intransitive) to stain or become stained or spotted
(transitive) to cause a blemish in or on; disgrace
to soak up (excess ink, etc) by using blotting paper or some other absorbent material
(of blotting paper or some other absorbent material) to absorb (excess ink, etc)
(transitive) often foll by out

to darken or hide completely; obscure; obliterate
to destroy; annihilate

(backgammon) a man exposed by being placed alone on a point and therefore able to be taken by the other player
(archaic) a weak spot


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  • Blot-analysis

    noun (biochem) a technique for analysing biological molecules, such as proteins (Western blot analysis), DNA (Southern blot analysis), and RNA (Northern blot analysis), involving their separation by gel electrophoresis, transfer to a nitrocellulose sheet, and subsequent analysis by autoradiography Also called blotting

  • Escutcheon

    a shield or shieldlike surface on which a coat of arms is depicted. an ornamental or protective plate around a keyhole, door handle, drawer pull, light switch, etc. Nautical. a panel on the stern of a vessel bearing its name and port of registry. blot on one’s escutcheon, a stain on one’s reputation; disgrace. Historical […]

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