shield


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shield

 [shēld]
1. any protecting structure.
2. in radiology, a protective device, often made of lead, through which particualr types of rays cannot pass; used to avoid the effects of ionizing radiation.

shield

(shēld),
A protecting screen; lead sheet for protecting the operator and patient from x-rays.
[A.S. scild]

shield

(shēld) any protecting structure.
Buller's shield  a watch glass fitted over the eye to guard it from infection.
nipple shield  a device to protect the nipple of a nursing woman.

shield

Etymology: AS, scild
a toxic neurological condition that results from eating clams, oysters, or mussels that have ingested the toxin-producing protozoa commonly called the red tide. The characteristic symptoms appear within a few minutes and include nausea, light-headedness, vomiting, and tingling or numbness around the mouth, followed by paralysis of the extremities and, possibly, respiratory paralysis. Saxitoxin, the causative agent, is not destroyed by cooking. However, the severity of the illness is diminished if the water used in cooking is not consumed. See also Gonyaulax catenella, venerupin poisoning.

shield

Etymology: AS, scild
a material for preventing or reducing the passage of charged particles or radiation. A shield may be designated by the radiation it is intended to absorb, such as a gamma ray shield, or by to the kind of protection it is intended to give, such as a background, biologic, or thermal shield. Lucite and aluminum can be used for beta-radiation shields, but lead is required for gamma ray shields.

shield

Infectious control A protective device that covers the face, which has a plasticine barrier through which the user sees. See Personal protection garment Medtalk That which protects, a protective barrier. See Dalkon shield, Human shield.

shield

(shēld)
A protecting screen; lead sheet for protecting the operator and patient from x-rays.

shield

(shēld)
A lead sheet to protect operator and patient from x-rays.
References in periodicals archive ?
Make sure the square protrusion on the bottom of the lever seats snugly into the groove of the pintle adapter of the weapon shield.
A 3-dimensional external stabilization system in Helmholtz-like configuration was built and tested in conjunction with a 4-layer permalloy shield and the pickup sensor outside the shield.
The Solid Side Shields protect the eyes of personnel who wear eyeglasses.
Notably, it was an ACS senior claims adjuster who, on New Year's Eve of 1981, writing in the margin of a complaint filed by a Dalkon Shield victim, raised the rarely asked question: "What is duty of an insurer to the public when it has knowledge of serious product defects which are likely to cause injury?
The weapon shield weighs 116 pounds and must be considered part of the vehicle payload.
Between 1971 and 1975, Robins, best known for Robitussin cough syrup and Chap Stick lip protector, marketed more than four million Dalkon Shield IUDs in 80 countries.
The bad news is that there aren't many weapon shield kits available.