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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 ?
When we first drove up to the stadium, it brought back a lot of memories,'' said Shields, 24, while sitting in the lush visitors' clubhouse before Friday's opener.
The Face Shield, which complies with OSHA fluid-protection standards, features UltraClear[TM], a shield surface that ensures optically clear viewing and excellent fluid protection.
For De Shields, The Full Monty is political as well as entertaining.
The Dalkon Shield was sold in the United States from January 1971 to June 1974, when the manufacturer, pressed by a worried Food and Drug Administration (FDA), ended domestic sales (but continued foreign sales until at least April 1975).
It's a play we work on over and over in spring training,'' Shields said.
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.
Free VPS Shield to Provide Protection from All Exploits against Vulnerability without Changing System Files, Configuration, or Functionality
It's not that Shields isn't capable, but he's simply more valuable in his current role.
Prior to Service Shield, the lack of any product being able to ensure transparent home network operation meant that when access problems arose, consumers had to seek technical support.
Right now, Shields isn't particularly effective as a reliever, either.
According to Whelan, PowerScribe will help Shields Health Care Group change the way it communicates with referring physicians.
From a business standpoint, I'm not doing anything to enhance putting me in the rotation next year,'' said Shields, who has given up 39 hits in his past 25 innings.