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a blot on the escutcheon

A stain or mark against one's reputation or that of one's family. An escutcheon was a heraldic shield that bore a family's coat of arms, and thus serves as a metaphor for one's honor. I was at the top of my class in college, but that narcotics charge will be a blot on the escutcheon for years to come.
See also: blot, escutcheon, on

a blot on (one's) escutcheon

A stain or mark against one's reputation or that of one's family. An escutcheon was a heraldic shield that bore a family's coat of arms, and thus serves as a metaphor for one's honor. I was at the top of my class in college, but that narcotics charge will be a blot on my escutcheon for years to come.
See also: blot, escutcheon, on

blot (one's) copy book

To tarnish, damage, or ruin one's reputation by behaving badly or committing some mistake or social transgression. Refers to a child's copy book, the blotting (staining with ink) of which ruins one's work. Primarily heard in UK. The local councilor blotted his copy book when it came to light that he had accepted bribes to allow unregulated development projects to go ahead. I really blotted my copy book when I spilled my drink on the visiting dignitary last night.
See also: blot, book, copy

a blot on the landscape

Something that is considered unattractive that covers up or otherwise takes away from the value of something attractive. Although many people say that they want clean energy, they argue that miles of turbines on wind farms are a blot on the landscape.
See also: blot, landscape, on

blot out

1. To cover something so that it cannot be seen or read. Be sure to blot out all the other names on this list before you put it in the employee's file.
2. To prevent something from being noticeable or entering one's awareness. Your curtains aren't opaque enough to blot out all of the sunlight.
3. To avoid thinking about something, often because it is stressful or traumatic. Many trauma victims try to blot out the horrific things that have happened to them.
4. To kill someone. Ray blotted out the informant, just as the boss told him to.
5. To completely destroy something. This illness threatens to blot out an entire generation. The fire blotted out all of our belongings.
See also: blot, out

blot on the landscape

Fig. a sight that spoils the look of a place. That monstrosity you call a house is a blot on the landscape. You should have hired a real architect!
See also: blot, landscape, on

blot someone or something out

Fig. to forget someone or something by covering up memories or by trying to forget. I try to blot those bad thoughts out. I tried to blot out those unhappy days.
See also: blot, out

blot someone out

Sl. to kill someone. (Originally underworld slang.) Sorry, chum, we got orders to blot you out. The gang blotted out the only living witness before the trial.
See also: blot, out

blot something out

to make something invisible by covering it. (See also blot someone or something out.) Don't blot the name out on the application form. Who blotted out the name on this form?
See also: blot, out

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."
See also: blot, out

a blot on the landscape

If a building or other structure is a blot on the landscape, it is very ugly and spoils a place which is otherwise attractive. The power station is both a blot on the landscape and a smear on the environment. Urban cemeteries, it seems to me, are blots on the landscape.
See also: blot, landscape, on

a blot on your escutcheon

or

a blot on the escutcheon

BRITISH, OLD-FASHIONED
If there is a blot on your escutcheon, you have damaged your reputation by doing something wrong. For the leaders, this is probably a blip rather than a blot on the escutcheon. Note: An escutcheon is a shield, especially a heraldic shield displaying a coat of arms.
See also: blot, escutcheon, on

blot your copybook

BRITISH
If you blot your copybook, you damage your reputation by doing something wrong. Their relationship had been so perfect. Until he'd blotted his copybook with Susan, that is. Note: You can also say that there is a blot on your copybook. In fact, just about the only blot on his copybook so far was a missed penalty against Arsenal 10 days ago. Note: In the past, schoolchildren had `copybooks'. These were books of examples of handwriting, with spaces for the children to copy it.
See also: blot, copybook

blot someone out

tv. to kill someone. (Underworld.) They blotted out the witness before the trial.
See also: blot, out

a blot on (one's) escutcheon

Dishonor to one's reputation.
See also: blot, escutcheon, on

a blot on the escutcheon

bringing dishonor or shame to oneself and one's family. “Escutcheon” is the heraldic term for the shield on which a family's coat of arms is painted. One with a blot, in the sense of blemish, would look as though there were something wrong, which is what The phrase is meant to convey. When Uncle Fred was hauled off to jail for embezzlement, he not only disgraced himself, he brought shame to his wife, his children, and any living parents. His crime was thus a metaphorical blot on the family escutcheon.
See also: blot, escutcheon, on
References in periodicals archive ?
Multiplex Detection and Quantitation of Proteins on Western Blots Using Fluorescent Probes," BioTechniques 29, 636-642 (2000).
Differences in human immunodeficiency virus type 1 (HIV-1) anti-p24 reactivities in serum of HIV-1-infected and uninfected subjects: analysis of indeterminate Western blot reactions.
Yesterday the ECHO revealed how within hours of highlighting the NCP car park on Duke Street as a blot spot, local firm Demolition Dismantling Services had moved in.
025 percent of the Red Cross donors--roughly 8 percent of the repeat reactives on the ELISA test -- wind up with positive western blot tests.
With the C-DiGit Blot Scanner, researchers now have an effective solution that is priced below capital expenditure thresholds.
31 /PRNewswire/ -- LI-COR Biosciences now offers the LI-COR Blot Washer for automating the tedious process of blot washing and secondary antibody addition for Western blots.
In Southern blots, a hybridization signal was only detectable in correspondence of the band of chromosomal DNA.
The blots were prehybridized with ULTRAArray hybridization buffer (Ambion) at 64[degrees]C for 3 hr.
They represent intuitive patterns of remembering: of the emergence and submergence, the appearance and disappearance, of the figures of memory--be they big black bugs, hanged men, grotesque faces, or butterflies drowned in expanding blots of ink.
By suggesting humorous avenues of interpretation for ink blots, Think Blots greeting cards provide unique, delightful and entertaining ways of expressing affection, attraction, concern and love; things we like to convey through greeting cards.
The guide includes application notes on improving quantification accuracy on Western Blots, technology and optical agent information for near-infrared molecular imaging and application guides for a variety of infrared imaging applications.
Blots were dried and fixed in 25% isopropanol, 10% acetic acid, and 65% water, incubated for 5 min in Tris-buffered saline (200 mM NaCl, 50 mM Tris, 0.
The higher sensitivity of Western blots compared with immunofluorescence has been demonstrated previously in our laboratory; it is frequently positive in acute-phase sera when antibodies cannot be detected by immunofluorescence (11).
Protran nitrocellulose membranes are the most frequently specified transfer media in the world for Western, Southern and Northern blots and join the industry-leading Whatman portfolio of cellulose membranes following the company's recent acquisition of Schleicher & Schuell (S&S).
The stripped blots were incubated with polyclonal anti-ERK-1/2 (1:1,000 dilution) at 4[degrees]C overnight, followed by incubation for 2 hr with a 1:2,000 dilution of horseradish peroxidase-conjugated antigoat IgG.