| 释义 |
WordReference Random House Learner's Dictionary of American English © 2024shield /ʃild/USA pronunciation n. [countable]- Heraldry, a device used as a defense against blows, esp. a broad piece of armor carried on the arm.
- a person or thing that defends, as from injury:the heat shield on the space capsule.
- something shaped like a shield, such as the badge of a police officer:The officer flashed his shield.
v. [~ + object] - to protect with or as if with a shield:to shield her children from the truth.
WordReference Random House Unabridged Dictionary of American English © 2024shield (shēld),USA pronunciation n. - Heraldrya broad piece of armor, varying widely in form and size, carried apart from the body, usually on the left arm, as a defense against swords, lances, arrows, etc.
- a similar device, often of lightweight plastic, used by riot police to protect themselves from rocks and other thrown objects.
- something shaped like a shield, variously round, octagonal, triangular, or somewhat heart-shaped.
- a person or thing that protects.
- a police officer's, detective's, or sheriff 's badge.
- Military[Ordn.]a steel screen attached to a gun to protect its crew, mechanism, etc.
- Mininga movable framework for protecting a miner from cave-ins, etc.
- Electricitya covering, usually made of metal, placed around an electric device or circuit in order to reduce the effects of external electric and magnetic fields.
- Zoologya protective plate or the like on the body of an animal, as a scute, enlarged scale, etc.
- ClothingSee dress shield.
- Heraldryan escutcheon, esp. one broad at the top and pointed at the bottom, for displaying armorial bearings.
- Aerospace, Astronomy(cap.) [Astron.]the constellation Scutum.
- Geologya vast area of ancient crustal rocks which, together with a platform, constitutes a craton.
- Energya protective barrier against nuclear radiation, esp. a lead or concrete structure around a reactor.
v.t. - to protect (someone or something) with or as if with a shield.
- to serve as a protection for.
- to hide or conceal;
protect by hiding. - [Obs.]to avert;
forbid.
v.i. - to act or serve as a shield.
- bef. 900; (noun, nominal) Middle English shelde, Old English sceld; cognate with Dutch, German Schild, Gothic skildus; (verb, verbal) Middle English shelden, Old English sceldan, scildan, derivative of the noun, nominal
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