blot out


1 [blot]
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.
verb (used with object), blotted, blotting.
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.
verb (used without object), blotted, blotting.
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.
Verb phrases
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.

1275–1325; (noun) Middle English blotte, akin to Old Norse blettr blot, spot, stain; (v.) late Middle English blotten, derivative of the noun

blotless, adjective
blottingly, adverb
blotty, adjective
unblotted, adjective

1. blotch, ink stain. 2. stain, taint, dishonor, disgrace, spot. 4. sully, disfigure. 5. obliterate, efface, erase, expunge. 7. absorb. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
blot1 (blɒt)
1.  a stain or spot of ink, paint, dirt, etc
2.  something that spoils or detracts from the beauty or worth of something
3.  a blemish or stain on one's character or reputation
vb (often foll by out) , blots, blotting, blotted
4.  (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)
5.  informal blot one's copybook to spoil one's reputation by making a mistake, offending against social customs, etc
6.  (intr) to stain or become stained or spotted
7.  (tr) to cause a blemish in or on; disgrace
8.  to soak up (excess ink, etc) by using blotting paper or some other absorbent material
9.  (of blotting paper or some other absorbent material) to absorb (excess ink, etc)
10.  a.  to darken or hide completely; obscure; obliterate
 b.  to destroy; annihilate
[C14: probably of Germanic origin; compare Middle Dutch bluysterblister]

blot2 (blɒt)
1.  backgammon a man exposed by being placed alone on a point and therefore able to be taken by the other player
2.  archaic a weak spot
[C16: perhaps from Middle Dutch bloot poor]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Word Origin & History

late 14c., originally "blemish," perhaps from O.N. blettr "blot, stain," or from O.Fr. blot, variant of bloc "block," or blestre "blister, lump, clump of earth." The verb is first attested mid-15c.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

blot (blŏt)
The Northern, Southern, or Western blot analyses.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Bible Dictionary

Blot definition

a stain or reproach (Job 31:7; Prov. 9:7). To blot out sin is to forgive it (Ps. 51:1, 9; Isa. 44:22; Acts 3:19). Christ's blotting out the handwriting of ordinances was his fulfilling the law in our behalf (Col. 2:14).

Easton's 1897 Bible Dictionary
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American Heritage
Idioms & Phrases

blot out

Obliterate, wipe out of existence or memory, as in At least one Indian nation was blotted out as the pioneers moved west, or The trauma of the accident blotted out all her memory of recent events. This idiom, first recorded in 1516, uses the verb to blot in the sense of making something illegible by spotting or staining it with ink. The New Testament has it (Acts 3:19): "Repent ye ... that your sins may be blotted out."

The American Heritage® Dictionary of Idioms by Christine Ammer.
Copyright © 1997. Published by Houghton Mifflin.
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