Definition of umbrella

< umbrageous

umbrella bird >

um·brel·la    (m-brl) KEY 

NOUN:

1. A device for protection from the weather consisting of a collapsible, usually circular canopy mounted on a central rod.
2. 1. Something that covers or protects.
   2. Air cover, especially during a military operation.
3. Something that encompasses or covers many different elements or groups.
4. Zoology The gelatinous, rounded mass that is the major part of the body of most jellyfish.

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ETYMOLOGY:
Italian ombrella, from Late Latin umbrella, alteration (influenced by umbra, shade), of Latin umbella, parasol ; see umbel

OTHER FORMS:
um·brella·less(Adjective)