meaning of umbrella
1. A shade, screen, or guard, carried in the hand for sheltering the person from the rays of the sun, or from rain or snow. It is formed of silk, cotton, or other fabric, extended on strips of whalebone, steel, or other elastic material, inserted, or fastened to, a rod or stick by means of pivots or hinges, in such a way as to allow of being opened and closed with ease. See Parasol.
2. The umbrellalike disk, or swimming bell, of a jellyfish.
3. Any marine tectibranchiate gastropod of the genus Umbrella, having an umbrella-shaped shell; -- called also umbrella shell.
4. a formation of military planes maintained over ground operations or targets; "an air umbrella over
">England"
Related Words
umbrella | umbrella arum | umbrella bird | umbrella fern | umbrella magnolia | umbrella pine | umbrella plant | umbrella sedge | umbrella tent | umbrella tree | umbrellalike | umbrellawort |