mask

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mask

 [mask]
1. a covering for the face, as a bandage, an apparatus for administering anesthesia or oxygen, or a cloth that prevents droplets from the mouth and nose from spreading in the air.
A standard face mask. From Lammon et al., 1996.
2. to cover or conceal, as the masking of the nature of a disorder by unassociated signs or organisms.
3. in audiometry, to obscure or diminish a sound by the presence of another sound of different frequency.
mask of pregnancy popular term for melasma gravidarum.
Venturi mask see venturi mask.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

mask

(mask),
1. Any of a variety of disease states or disorders that cause alteration or discoloration of the skin of the face.
2. The expressionless appearance seen in association with certain diseases; for example, Parkinson facies.
3. A facial bandage.
4. A shield designed to cover the mouth and nose for maintenance of antiseptic conditions.
5. A device designed to cover the mouth and nose for administration of inhalation anesthetics, oxygen, or other gases.
Farlex Partner Medical Dictionary © Farlex 2012

mask

(măsk)
n.
1. A covering for the nose and mouth that is used for inhaling oxygen or an anesthetic.
2. A covering worn over the nose and mouth, as by a surgeon or dentist, to prevent infection.
3. A facial bandage.
4. Any of various conditions producing alteration or discoloration of the skin of the face.
5. An expressionless appearance of the face seen in certain diseases, such as parkinsonism.
v.
To cover with a protective mask.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

mask

Audiology
verb To diminish or attenuate a sound with another.
 
Forensics
See Progressive purple mask of death.
 
Infectious control
noun A typically disposable personal protection device that covers the nose and mouth to prevent transmission of potentially infected aerosols from a patient to a healthcare worker, or vice versa.

Neurology
See Mask-like facies.
 
Psychology
noun A outward concealment of wishes or needs, often as an ego defence.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

mask

Audiology verb To diminish or attenuate a sound with another Infectious control noun A usually disposable personal protection device that covers the nose to prevent transmission of potentially infected aerosols from a Pt to a health care worker–HCW or from an HCW to a Pt. See Isolation, Personal protection garment, Reverse isolation Psychology Barrier A concealment of wishes or needs, often as a ego defense.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

mask

(mask)
1. Any of a variety of disease states producing alteration or discoloration of the skin of the face.
2. The expressionless appearance seen in certain diseases (e.g., Parkinson facies).
3. A facial bandage.
4. A shield designed to cover the mouth and nose for maintenance of aseptic conditions.
5. A device designed to cover the mouth and nose for administration of inhalation anesthetics, oxygen, or other gases.
See also: mission-oriented protective posture, gas mask
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

masking

A term describing any process whereby a detectable stimulus is made difficult or impossible to detect by the presentation of a second stimulus (called the mask). The main stimulus (typically called the target) may appear at the same time as the mask (simultaneous masking); or it may precede the mask (backward masking; example: metacontrast); or it may follow the mask (forward masking; example: paracontrast).
Millodot: Dictionary of Optometry and Visual Science, 7th edition. © 2009 Butterworth-Heinemann

mask

(mask)
1. Any of a variety of disease states or disorders that cause alteration or discoloration of facial skin.
2. Expressionless appearance seen in association with some diseases, e.g., Parkinson facies.
3. Facial bandage.
4. Shield designed to cover mouth and nose for maintenance of antiseptic conditions.
5. Device designed to cover mouth and nose for administration of inhalation anesthetics, oxygen, or other gases.
Medical Dictionary for the Dental Professions © Farlex 2012
References in periodicals archive ?
In her painterly stroke, with which she renders haunting, masklike visages, she also pays homage to Edvard Munch and James Ensor, for they too were intent upon mining deposits of suppressed feeling far below the surface.
As in so many people with amyotrophic lateral sclerosis, the muscle wasting had produced a gaunt, masklike expression of the face, which in her case was made all the more desperate by the absence of teeth except for two large upper incisors that protruded below her upper lip.
Cynthia Haymon's Bess is truly disorienting; while her incredible voice is blowing the roof off of Porgy's hut on the soundtrack, her masklike face remains impassive, unexpressive.
The face has a flat, masklike quality, with numerous brown, pink, and green holes that could be eyes, nostrils, or windows to nowhere.
(5) Mitrano examines how his 1906 portrait of Stein succeeded in giving her a "public face," though one that is masklike, beyond all emotion.
But hairdos and footwear provide clever clues to this volatile period, as do the discordant sounds of Lisa Dove's mournful cello and Tatjana Cornij's high-wailing accordion--not to mention the latter's rigid, masklike makeup.
In Skywalk, a throng of rush-hour office workers cross a skyscrapered intersection; the figures are eerily limned with the red glow of sunset and their faces--with identical features--are almost masklike in the dim light.
These drugs have mild antiparkinsonian effects; they are helpful in relieving tremor and rigidity, less so in alleviating bradykinesia, masklike facies, or gait disturbances.
There is one further and momentous influence: Picasso visited the Ethnographic Museum of the Palais de Trocadero and was obviously enough shaken by Negro and Oceanic art to modify two of the demoiselles' faces into fierce and masklike apparitions with, one feels, ritual strips of paint or symbolic scarifications.
Night Cavern, 2017, for example, a hand-built totem nearly seven feet tall, could only be seen from a distance; other objects were carefully placed at the edges of the path: Among these were Square Head, 2017, a flat, masklike piece that hung squarely perpendicular to the walkway, and Silent Activism, 2017, perched precariously on the margin of the raised path.
But her masklike countenance of recent years does not accommodate such emotional calisthenics as it once did.
A set of bold, bright canvases that look like stained-glass windows of the Seven Days of Creation hangs suspended beside a whimsical mixed media wall relief--a Jacob's ladder of powder-blue angel wings laced with white masklike faces.