mask

mask (mask)

1. a covering or appliance for shading, protecting, or medicating the face.

2. to cover or conceal.

3. in audiometry, to obscure or diminish a sound by the presence of another sound of different frequency.

4. in dentistry, to camouflage metal parts of a prosthesis by covering with opaque material.

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mask (msk)

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. Something, often a trait, that disguises or conceals.

5. Any of a variety of conditions producing alteration or discoloration of the skin of the face.

6. An expressionless appearance of the face seen in certain diseases, such as Parkinsonism.

v.

1. To cover with a protective mask.

2. To cover in order to conceal, protect, or disguise.

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mask

Etymology: Fr, masque

1  v, to obscure, as in symptomatic treatment that may conceal the development of a disease.

2  v, to cover, as does a skin-toned cosmetic that may hide a pigmented nevus.

3  n, a cover worn over the nose and mouth to prevent inhalation of toxic or irritating materials, to control delivery of oxygen or anesthetic gas, or (by medical personnel) to shield a patient during aseptic procedures from pathogenic organisms normally exhaled from the respiratory tract. Surgical masks are worn by workers to help control the operating room environment during a patient procedure.

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mask,

n 1. something that conceals from view.
n 2. a protective covering, especially for the face.
v 3. to cover up.

mask, nonbreather,

n a plastic mask worn over the oral cavity and nose in order to deliver additional oxygen to a patient who is able to breathe on his or her own. See also mask, oxygen.

mask, oxygen,

n a device used during the delivery of oxygen that fits securely over the nose and oral cavity so that oxygen may be inhaled and carbon dioxide exhaled.

mask, rubber dam,

n See pad, rubber dam.

mask, Wanscher's,

n a mask for ether anesthesia.

mask, Yankauer's,

n an open type of mask for administering ether.

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mask

1. to cover or conceal, as the masking of the nature of a disorder by the presence of unassociated signs, organisms, etc.; in audiometry, to obscure or diminish a sound by the presence of another sound of different frequency.

2. an appliance for shading, protecting, or medicating the face, e.g. a surgical mask.

3. the dark shaded markings on the face of some dog and cat breeds.

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Schimmelbusch mask

see schimmelbusch mask.

Venturi mask

see venturi mask.

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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).

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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.