Dictionary » U » 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. Underneath the umbrella's oily shed. (gay)

2. (Science: zoology) The umbrellalike disk, or swimming bell, of a jellyfish.

3. (Science: zoology) Any marine tectibranchiate gastropod of the genus Umbrella, having an umbrella-shaped shell; called also umbrella shell.

(Science: zoology) Umbrella ant, a south American bird (Cephalopterus ornatus) of the family Cotingidae. 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.

(Science: botany) Umbrella leaf, 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).

Origin: It. Umbrella, fr. Ombra a shade, L. Umbra; cf. L. Umbella a sunshade, a parasol. Cf. Umbel, Umbrage.

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... and your inability to function properly, since it's less able to use sugar for energy needs.Weight lossWeight fluctuations also fall under the umbrella of possible diabetes signs and symptoms. When you lose sugar through frequent urination, you also lose calories. At the same time, diabetes ...

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by einfopedia
Tue Apr 03, 2012 8:31 am
Forum: Human Biology
Topic: Diabetes
Replies: 5
Views: 4272

Re: Getting back to Biology

... biology/chemistry will greatly advantage you. You can probably do both (computer applications in bio) + (mol bio & struct chem) within the umbrella of a single bioinformatics program, especially one that bills itself as interdisciplinary.

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by jonmoulton
Fri Dec 17, 2010 5:11 pm
Forum: General Discussion
Topic: Getting back to Biology
Replies: 4
Views: 2434

Re: Help with argument

... later pointed out to me that he used to hold several seminars for high school biology teachers and that he was probably including such under the umbrella of "biologists." My position was that the vast majority of biologists (and I was not at the time thinking of American biology teachers ...

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by qixlux
Sat Jul 31, 2010 4:17 pm
Forum: Evolution
Topic: Help with argument
Replies: 5
Views: 2448

Re: animal with the longest lifespan

... it into a new cell. In this process the medusa of the immortal jellyfish is transformed into the polyps of a new polyp colony. First, the umbrella reverts itself and then the tentacles and mesoglea get resorbed. The reverted medusa then attaches itself to the substrate by the end that ...

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by master94
Mon Jul 12, 2010 12:25 pm
Forum: Zoology Discussion
Topic: animal with the longest lifespan
Replies: 9
Views: 13813


I must say that evolution and the big bang theory are both theories and have many theories that fall under their umbrella. All of said theories are false. THere is no COMPLETE, SOLID EVIDENCE supporting evolution, the big bang theory, and all theories encompassed by both. Please ...

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by robsabba
Mon Sep 28, 2009 10:26 pm
Forum: Evolution
Topic: Big bang and Evoluion
Replies: 75
Views: 72851
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