n. 伞, 雨伞, 保护伞

a. 伞的, 包罗万象的

vt. 用伞遮掩

[法] 包罗众多的, 伞状的

Umbrella \Um*brel"la\, n. [It. umbrella, fr. ombra a shade, L.
umbra; cf. L. umbella a sunshade, a parasol. Cf. {Umbel},
{Umbrage}.]
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}.

Underneath the umbrella's oily shed. --Gay.

2. (Zo["o]l.) The umbrellalike disk, or swimming bell, of a
jellyfish.

3. (Zo["o]l.) Any marine tectibranchiate gastropod of the
genus {Umbrella}, having an umbrella-shaped shell; --
called also {umbrella shell}.

{Umbrella ant} (Zo["o]l.), the sauba ant; -- so called
because it carries bits of leaves over its back when
foraging. Called also {parasol ant}.

{Umbrella bird} (Zo["o]l.), a South American bird
({Cephalopterus ornatus}) of the family {Cotingid[ae]}. It
is black, with a large handsome crest consisting of a mass
of soft, glossy blue feathers curved outward at the tips.
It also has a cervical plume consisting of a long,
cylindrical dermal process covered with soft hairy
feathers. Called also {dragoon bird}.

{Umbrella leaf} (Bot.), an American perennial herb
({Dyphylleia cymosa}), having very large peltate and lobed
radical leaves.

{Umbrella shell}. (Zo["o]l.) See {Umbrella}, 3.

{Umbrella tree} (Bot.), a kind of magnolia ({Magnolia
Umbrella}) with the large leaves arranged in umbrellalike
clusters at the ends of the branches. It is a native of
Pennsylvania, Virginia, and Kentucky. Other plants in
various countries are called by this name, especially a
kind of screw pine ({Pandanus odoratissimus}).