umbrella

umbrella
noun

a device consisting of a circular canopy of cloth on a folding metal frame supported by a central rod, used as protection against rain
伞；雨伞；阳伞
■(figurative)a protecting force or influence
(喻)保护伞
the American nuclear umbrella over the west.
美国对西方的核保护伞。
■a screen of fighter aircraft or anti-aircraft artillery
（战斗机或高射炮构成的）掩护幕；防空火网
■[usu. as modifier]a thing that includes or contains many different elements or parts
多成分组成物；综合机构
an umbrella organization.
综合性机构。
(Zoology)the gelatinous disc of a jellyfish, which it contracts and expands to move through the water
(动)（水母）伞膜

派生
umbrellaed
adjective
umbrella-like
adjective
语源

early 17th cent.: from Italian ombrella, diminutive of ombra 'shade', from Latin umbra (see umbra)

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