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Related to masking: Sound masking

(one's) mask slips

One's true personality, agenda, or motivation has been revealed, which stands in contrast to what was presented to other people. Her masked slipped for just a moment, and everyone could see the contempt she really held for her audience. Now that the senator's mask has slipped, he's going to have an even harder time getting reelected. Wow, the chair of the humane society's mask seriously slipped at that event, huh? People are horrified to know how she really feels about animals.
See also: mask, slip

mask out

To hide, cover, or conceal something, either partially or in full. A noun or pronoun can be used between "mask" and "out." He thinks he can just mask out the smell in the bathroom with that horrible deodorant spray, but it just makes everything worse. We've planted trees around the perimeter of our property to mask it out from the neighbors.
See also: mask, out

throw off the mask

To discard some pretense or false display and begin acting in a genuine or authentic manner. It seems that many people have thrown off the mask of decency, whether they're protesting or responding to the protests. Jane, I implore you, throw off the mask and let the world see your true self!
See also: mask, off, throw
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.

mask something out

to conceal or cover part of something from view. The trees masked the city dump out, so it could not be seen from the street. The trees masked out the dump.
See also: mask, out
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
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References in periodicals archive ?
Color range masking is an efficient way to apply a mask in an area of color.
This technique is best used where there is pads or islands of a part that need masking. Masks are cut with the same spacing as on the part.
So if you are not already using die cut masks then call your masking company and ask them about die cut masks.
Studies that have compared the effects of facial and non-facial masks (that is, masks that do not contain face stimuli) or of masks that contain different levels of facial information, have shown that the presence of facial information in the mask is crucial to produce significant masking in face identification (Costen, Shepherd, Ellis, & Craw, 1994; Loffler, Gordon, Wilkinson, Goren, & Wilson, 2005).
If tasks differ in the relative diagnostic value of different facial features or in the specific processing demands required in each case, this might be reflected in their sensitivity to stimulus duration and masking, due to differences in the type and amount of information needed for accurate identification or in the time needed to perform the computations required by each task.
In Experiments 1a and 1b the masking power of neutral faces and noise masks (scrambled face stimuli) was compared.
“The latest version of the Camouflage Data Masking Solution demonstrates our continued commitment to offering the very best Data Masking platform,” says Kevin Duggan, CEO of Camouflage Software Inc.
As pioneers in data masking, Camouflage Software Inc.
In such patients, in order to provide 40-dB masking above the BC threshold in the nontest ear, the masking level may exceed interaural attenuation and produce an inadvertent threshold elevation by masking the test ear, as well.
However, LUN masking is at its best in smaller storage area networks where the number of WWNs and LUNs are manageable.
Switch zoning is not identical to LUN masking, since it can only mask a port to hide the LUNs behind it and cannot mask individual LUNs from hosts connected to the same port.
* Never leave masking tape on varnished or polyurethane-coated surfaces for more than 24 hours.
Then use a fresh piece of masking tape to pull off the gunk.
A good masking supplier will be able to offer a number of cost effective solutions for you, three of which are as follows.
The most basic of custom masking solutions involves pre-cut shapes that you simply peel off and stick onto the area of the part that you want to mask.