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Related to shielding: Radiation shielding


1. A broad piece of armor made of rigid material and strapped to the arm or carried in the hand for protection against hurled or thrusted weapons.
2. A person or thing that provides protection.
3. A protective device or structure, as:
a. A steel sheet attached to an artillery piece to protect gunners from small-arms fire and shrapnel.
b. Physics A wall or housing of concrete or lead built around a nuclear reactor to prevent the escape of radiation.
c. Electronics A structure or arrangement of metal plates or mesh designed to protect a piece of electronic equipment from electrostatic or magnetic interference.
d. A pad worn, as at the armpits, to protect a garment from perspiration.
e. A sanitary napkin.
4. Zoology A protective plate or similar hard outer covering; a scute or scutellum.
5. Something that resembles a shield, as:
a. An escutcheon.
b. A decorative emblem that often serves to identify an organization or a government.
c. A police officer's badge.
6. Geology The ancient, stable, interior layer of continents composed of primarily Precambrian igneous or metamorphic rocks. Also called continental shield.
v. shield·ed, shield·ing, shields
1. To protect from being attacked, exposed to danger, or subjected to difficulty: "a policymaking elite whose families and purses are shielded from the sacrifices war entails" (Uwe E. Reinhardt). See Synonyms at defend.
2. To cover up; conceal: "Though many eyes were watching, none could pierce the halo of morning sunlight that surrounded and shielded the hawk" (Peter Dunne).
To act or serve as a shield or safeguard.

[Middle English sheld, from Old English scield; see skel- in Indo-European roots.]

shield′er n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


1. Material of suitable thickness and physical characteristics used to protect personnel from radiation during the manufacture, handling, and transportation of fissionable and radioactive materials.
2. Obstructions which tend to protect personnel or materials from the effects of a nuclear explosion.
Dictionary of Military and Associated Terms. US Department of Defense 2005.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.shielding - the act of shielding from harmshielding - the act of shielding from harm  
protection - the activity of protecting someone or something; "the witnesses demanded police protection"
2.shielding - a shield of lead or concrete intended as a barrier to radiation emitted in nuclear decay
shield - a protective covering or structure
3.shielding - shield consisting of an arrangement of metal mesh or plates designed to protect electronic equipment from ambient electromagnetic interference
shield - a protective covering or structure
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Shielding gases are generally denser compared to air, thus can wrap around the welds and will need low flow rates for distributing the gas.
The report discreetly mentions the prime companies operating in the Industrial Radiation Shielding market, together with production and revenue statistics, followed by recent developments.
Summary: Stringent government regulations for EMI to protect the users from any electromagnetic radiations will continue to favor the overall growth of EMI shielding market.
M2 PHARMA-August 26, 2016-Medical Radiation Shielding Market to Reach USD 1.33bn by 2021, Research and Markets Predicts
M2 EQUITYBITES-March 31, 2016-RF shielding enhances in-building DAS, small cell performance
TELECOMWORLDWIRE-March 31, 2016-RF shielding enhances in-building DAS, small cell performance
The traditional marketplace for aluminum shielding has not been able to provide the necessary span to replace a steel trench shield, while also meeting depth rating requirements.
In [2] three applications in Italy are described (trefoil configuration at 132 and 380 kV), obtaining a shielding effectiveness SE (ratio between the non-mitigated field and the mitigated one in dB) greater than 25 dB.
So in terms of supporting 10GBASE-T, for our system, the issue with respect to shielding becomes the normal issue of selecting unshielded or shielded depending on the electromagnetic environment.
The Hypertronics HG Shielded line offers enhanced EMI/RFI shielding. Features of the Hypertronics Shielded HyperGrip are a circular push-pull medical connector series that provides continuous shielding through the connector with an attenuation of-50db at 3.0 GHz in an insulated plastic shell, and delivering extraordinary contact mating lifecycles that result in a significant lowering in the cost of ownership.