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shield Definition

shield (s̸hēld)

noun

  1. a flat, usually broad, piece of metal, wood, etc., carried in the hand or worn on the forearm to ward off blows or missiles
  2. any person or thing that guards, protects, or defends
  3. a heraldic escutcheon
  4. anything shaped like a shield, as a plaque, trophy, badge, or emblem
  5. a movable canopy protecting workers from cave-ins in mines, tunnels, etc.
  6. a heavy metal screen attached to an artillery piece for the protection of the gunners
    1. a guard or safety screen, as over the moving parts of machinery
    2. an insulating covering on electric wires, etc.
    3. any material or structure used for protection against radiation
  8. dress shield
  9. Zool. a hard surface covering or shell; protective plate, as on a turtle

Etymology: ME schelde < OE scield, akin to Ger schild < Gmc *skild- < IE base *(s)kel- > shelf

transitive verb

  1. to be or provide a shield for; defend; protect; guard
  2. to hide from view; screen

intransitive verb

to serve as a shield, or protection

shield Related Forms

shield′er noun

shield Synonyms

shield

n.

buckler, defense, absorber, buffer, bumper, protection, shelter, pavis, guard, targe*.

shield Telecom Definition

A covering, sheath, or screen designed to protect a signal traveling over a conductor from electromagnetic interference (EMI) due to the unwanted coupling of extraneous signals.The shield is in the form of a conductive metal foil, screen, or braid that surrounds a conductor or group of conductors. A dielectric material insulates the conductors from each other and from the shield, which essentially is an outer conductor that intercepts extraneous signals and conducts them to ground. Therefore, the shield must be continuous and must be grounded via a ground wire, or drain wire.To ensure electrical continuity, the shield must be bonded at any splice points and the shield must be bonded to the ground wire, strap, or rod. Coaxial cable, screened twisted pair (ScTP), and shielded twisted pair (STP) are examples of shielded transmission media in telecommunications applications. See also coaxial cable, dielectric, EMI, ground wire, ScTP, and STP.

shield Usage Examples

Object

  • twisted-pair: Some cable, such as CT100 coax and CAT5E shielded twisted-pair, is almost impossible to obtain and we apologize for any inconvenience.
  • cable: We recommend getting a fully shielded cable, preferably 6 feet or less in length.

Converse of object

  • compute: Google developing eavesdropping software Trusted computing a shield against worst attacks?
  • decorate: Q: How were the faces of shields decorated?

Adjective modifier

  • heraldic: The heraldic shields at the first floor level indicate the marriage lines of the Ramsden family.
  • protective: Is the protective shield established for the benefit of the young person themselves?
  • anti-missile: Foreign stories this week - The Americans conduct an experiment in the development of an anti-missile shield in Space.
  • oval: Two spearmen, spears down, have round shields, whilst three spearmen throwing, have oval shields.
  • blue: Children percent were eligibility to blue cross blue shield of north carolina health insurance quote percent.
  • defensive: Eight of the 10 were either once an integral part of the USSR or constituted its defensive shield against Nato and the capitalist west.

Modifies a noun

  • volcano: Shield volcanoes are low or almost flat, which makes them look like a big shield.
  • boss: As shield bosses are different then the wings, bolts and tridents are all going to be slightly different in exact positioning.
  • california: Brownworth's only option there is a. Uninsured and with unique to the detect blue shield california health insurance the disease.

Modifying Another Word

magnetically: Both drivers are magnetically shielded allowing operation close to video monitors.

Noun used with modifier

  • riot: We'd had mass pickets before but we'd only had police with riot shields - nothing nasty.
  • missile: Political momentum to build a missile shield for the entire United States is now strong.
  • gibson: Now we know that anyone offering steve gibson shields up as their primary product must get the word out.
  • gum: We wear head guards and gum shields for safety.
  • grc: Thank you for coming to our grc com shields up information page, we appreciate it greatly. portscan me.
  • steve: Now we know that anyone offering steve gibson shields up as their primary product must get the word out.