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 ({M. 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}).