cobra

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cobra,

name for African and Asian snakes of the family Elapidae that are equipped with inflatable neck hoods. The family also includes the African mambasmamba,
name for African snakes of the genus Dendroaspis, in the cobra family. Widely distributed throughout Africa except in the deserts, mambas have extremely toxic venom.
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, the Asian kraits, the New World coral snakescoral snake,
name for poisonous New World snakes of the same family as the Old World cobras. About 30 species inhabit Mexico, Central America, and N South America; two are found in the United States.
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 and a large number of Australian snakes. All members of the family are poisonous and have short, rigid fangs attached at the front of the mouth. Cobras are found in most of Africa and in S Asia. They are nocturnal hunters, and most feed on small mammals, birds, and frogs. Females of all but one species lay eggs. The hood, which serves as a warning device, consists of loose skin around the neck; when the snake is excited it spreads the hood by extending the underlying long, movable ribs, and inflating it with air from the lungs. The king cobra (Ophiophagus hannah), or hamadryad, largest of all venomous snakes, is found in S Asia; it may reach a length of 18 ft (5.5 m) and feeds chiefly on other snakes. The Indian cobra (Naja naja), a common snake of the same region, is usually 4 to 5 ft (1.2–1.6 m) long; its large hood is marked on the back by a pattern of figures resembling eyes. It preys on rats and is therefore often found in houses. The Indian cobra and the Egyptian cobra (Naja haja) are often displayed by snake charmers. The cobras appear to respond to the music played by the charmer, but, like all snakes, they are deaf and only follow the movements of the charmer. As cobras do not strike accurately during the day, charmers are seldom bitten. Most cases of snakebite from cobras occur when humans walking barefoot at night disturb the animal. Cobra venom is not as toxic as that of some other members of the family; the fatality rate among human victims is thought to be about 10%. Some African cobras can eject a spray of venom through the openings of the fangs, aiming accurately to a distance of at least 6 ft (1.8 m). Among these is the ringhals (Hemachatus hemachatus) of S Africa, which aims the spray at the eyes of the victim, causing great pain and sometimes blindness. The ringhals is the only cobra that bears live young. Cobras are classified in the phylum ChordataChordata
, phylum of animals having a notochord, or dorsal stiffening rod, as the chief internal skeletal support at some stage of their development. Most chordates are vertebrates (animals with backbones), but the phylum also includes some small marine invertebrate animals.
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, subphylum Vertebrata, class Reptilia, order Squamata, family Elapidae.

cobra

[′kō·brə]
(vertebrate zoology)
Any of several species of venomous snakes in the reptilian family Elaphidae characterized by a hoodlike expansion of skin on the anterior neck that is supported by a series of ribs.

cobra

bite believed to mean certain death. [Folklore: Jobes, 352]

cobra

1. any highly venomous elapid snake of the genus Naja, such as N. naja (Indian cobra), of tropical Africa and Asia. When alarmed they spread the skin of the neck region into a hood
2. any related snake, such as the king cobra

COBRA

(spelling)
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References in periodicals archive ?
Hemoglobinemia, observed is probably due to hemolytic nature of the cobra venom (Soto et al.
Cytotoxin lytic activity in synergy with various phospholipases of cobra venom was also reported (Chaim-Matyas et al.
An in-vitro study revealed that the cardiotoxin from cobra venom caused disintegration of the membrane structure of human erythrocytes, which potentiates the hydrolysis of phospholipids in the membrane by the phospholipase A2.
Enzyme immunoassay methods (EIA): Egg yolk antibody (IgY) based sandwich ELISA (14) for the cobra venom and indirect-competitive inhibition ELISA (15) for the krait venom were used for analyzing venom antigens in the forensic specimens.
The ricin -a toxin twice as deadly as Cobra venom -was found in the office of Senate Majority leader Bill Frist.
THAILAND: Police are hunting a man who injected a woman's hand with deadly cobra venom as she slept in her car outside a Bangkok university.
The Times of London said instructions for making the biological chemical ricin - an untraceable poison that is twice as deadly as cobra venom - were found in an al-Qaida safe house in Kabul, the wire service reported.
One tablespoon of cobra venom can kill up to 165 people or more than 160,000 mice.
Cobra venom kills via neurotoxins, proteins that paralyze an animal's nervous system and diaphragm, abdominal muscles used to breathe.
Platelet treatment with mocarhagin, a cobra venom metalloproteinase that cleaves GpIba, significantly reduced aggregation induced by 5 mM without affecting the response to other agonists such as adenosine diphosphate (ADP).
Front runners to meet the British requirement are Westland (bidding the Longbow Apache), British Aerospace (offering the Franco-German Tiger) and GEC (the Cobra Venom variant of Bell Textron's AH-1W).
Additionally, Nyloxin Rx does not rely on the use of opioids for its pain relieving action, but, instead, uses a novel mechanism from cobra venom peptides for treating pain.