umbrella
/ʌmˈbrelə/noun
1
- 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。
1.1
- 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。
1.2
- 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。
1.3
- 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。
2
- Zoology the gelatinous disc of a jellyfish, which it contracts and expands to move through the water【动】（水母）伞膜。
派生词
umbrellaed
adjectiveumbrella-like
adjective词源
early 17th cent.: from Italian ombrella, diminutive of ombra 'shade', from Latin umbra （see UMBRA）.