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Related to Insect sting: bee sting, Spider bite


in zoology, organ found in bees, many wasps, some ants, and in scorpions and sting rays, used defensively as well as to kill or paralyze prey. In the bee and the wasp the venomvenom
or zootoxin,
any of a variety of poisonous substances produced by animals. In poisonous snakes, venom is secreted in two poison glands, one on each side of the upper jaw, and enters the fang by a duct.
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 is produced by glands associated with the ovipositor (egg-laying organ) of the female. As symptoms differ, it is assumed that the venom of each species of insect probably has slightly different chemical properties. The bee's "acid gland" produces histamine and proteinlike substances that are extremely dangerous to persons with specific allergies to them. Adrenaline injections may be lifesaving in such cases. In the honeybee the sting is a minute needle with tiny serrated edges, the teeth of which point backward. This makes it hard for the insect to pull the organ loose and often results in the fatal loss of the sting, the poison gland, and part of the intestine. Hornets, yellow jackets, and other wasps have sharp, smooth stings that can be used repeatedly. A few ants produce formic acid as a venom. The scorpion kills its prey with poison injected by a curved spine at the tip of its tail; the wound is painful to human adults and may be fatal to children. Strictly speaking, spiders bite rather than sting, since they inject their venom by means of fanglike cheliceras. Coelenterates, e.g., the hydra, jellyfish, and certain corals, are equipped with stinging capsules (nematocysts) consisting of a trigger mechanism that, when stimulated, raises the hydrostatic pressure of the cell so that hollow venom-bearing threads are ejected with enough force to pierce the prey. The larger coelenterates, e.g., the Portuguese man-of-war and Cyanea, are dangerous to man. The stingrays, or stingarees, have long whiplike tails bearing one to three sharply toothed, bony, poisonous stingers capable of inflicting painful wounds.
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1. a skin wound caused by the poison injected by certain insects or plants
2. pain caused by or as if by the sting of a plant or animal
3. a sharp pointed organ, such as the ovipositor of a wasp, by which poison can be injected into the prey
4. Slang a trap set up by the police to entice a person to commit a crime and thereby produce evidence
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005


A parallel dialect of Scheme intended to serve as a high-level operating system for symbolic programming languages. First-class threads and processors and customisable scheduling policies.

E-mail: <>.

["A Customizable Substrate for Concurrent Languages", S. Jagannathan et al, ACM SIGPLAN Notices, 1992].
This article is provided by FOLDOC - Free Online Dictionary of Computing (
References in periodicals archive ?
Between 1 and 3 percent of the country's adult population - up to 7.4 million people - may have systemic reactions to insect stings, and a smaller proportion have life-threatening responses, experts say.
"Children who have a moderate-to-severe reaction to insect stings [and who] test positive for allergy would be candidates for allergy shots."
* Camp Guide to Managing Severe Allergic Reactions (Includes basic information about anaphylaxis, including food and insect sting allergy.
Overall, 48% of the patients said they had not identified a cause, 9% associated their hives with an insect sting or dermatographia or contact, and 5% associated their hives with food.
That kind of a fatal reaction to an insect sting is rare.
Bring rescue medications for asthma and an epinephrine kit if you or a family member has food or insect sting allergies.
They are effective against allergic rhinitis (hay fever), insect sting allergy, and asthma, among others.
The report also covers drug, food, insect sting, latex, anaphylactic, and anaphylactoid reactions.
Apis: Apis Mellifica, made from honeybee venom, is useful when there is sudden swelling of body tissue following an insect sting, particularly bee or wasp.
Insect sting allergy is a major health hazard for a significant number of individuals in the southern United States.
The normal reaction from an insect sting is temporary pain, reddening of the sting area, and a hardening of the sting site.
"People look to Amazon now as not only an e-com shopping resource, but as a search engine to find the best products--the highly reviewed ones," says Jim Creagan, president of insect sting remedy manufacturer Randob Labs Ltd.