brown recluse spider

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1. an arthropod of the class Arachnida.
spider bite in the United States, the two spiders whose bites are most likely to cause a serious reaction are the black widow spider(Latrodectus mactans) and the brown recluse spider(Loxosceles reclusa). Signs and symptoms are associated with the effects of injection of the venom and include pain at the injection site, weakness, muscle pain and cramps, elevated blood pressure, and restlessness. Bites by these spiders must be treated promptly and effectively. First aid is the same as that for a snakebite and includes the following:

1. Wash the wound with soap and water and apply a clean dressing.

2. Apply a constricting band between the area of the bite and the heart.

3. Keep the person calm and transport him to the hospital or medical facility as soon as possible.

4. If swelling becomes apparent, apply a cold compress to the area.
black widow spider Latrodectus mactans, a poisonous spider found in North America; see spider bite.
brown recluse spider Loxosceles reclusa, a poisonous spider found in North America; see spider bite.
vascular spider a telangiectasis due to dilatation and branching of superficial cutaneous arteries, which presents as a bright red central portion with branching radiations, the whole somewhat resembling the configuration of a spider. The lesions may occur singly or in large numbers, and may be nevoid or acquired, being commonly associated with pregnancy and liver disease. Called also nevus araneus, spider nevus, and spider telangiectasia.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

brown recluse spider

A venomous spider (Loxosceles reclusa) having a violin-shaped mark on the cephalothorax, native to the southern and central United States and found in dark undisturbed areas such as closets and sheds. Also called fiddleback spider.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

rec·luse spi·der

(rek'lūs spī'dĕr)
The (brown) recluse spider is a venomous representative, Loxosceles reclusa, of the family Sicariidae (formerly of the family Loxoscelidae); native to the United States from the southern Midwest south to the Gulf of Mexico, but found elsewhere too. Most bites are minor with no necrosis, but consequences may be worse in some cases.
Synonym(s): brown recluse spider.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
References in periodicals archive ?
Laboratory studies of brown recluse spiders" survival have focused on their apparently unusual longevity.
Enzymatic and hemolytic properties of Brown Recluse spider (Loxoceles reclusa) toxin and extracts of venom apparatus, cephalothorax and abdomen.
A brown recluse spider bit a 54-year-old woman on her left earlobe while she was sleeping on a piece of furniture that had been in storage until recently.
Activity patterns of synanthropic population of the brown recluse spider, Loxosceles reclusa (Araneae: Sicariidae), with observations on feeding and mating.
Previous studies at our institution have been performed to evaluate the effect of the brown recluse spider venom (BRSV) on human citrated plasma in vitro.
(3,4) When Cacy and Mold (5) examined the characteristics of brown recluse spider bites in outpatient settings, they found that 43% of patients healed within 2 weeks and only 1 in 149 patients required hospitalization.
History should exclude the possibilities of Lyme disease, rickettsia pox, and, in some regions, brown recluse spider bites.
Though all spiders are poisonous in a way, which helps them kill and digest their prey, the brown recluse spider is one of the few spiders that are dangerous to humans, said Logan Randolph, a biology professor from Polk State College.
Kevin McNamara, 40, thinks the 2cm-long Brown Recluse spider bit him during his family holiday in Florida.
[66.] Brown Recluse Spider. /Animals/Brown_Recluse_Spider.
The brown recluse spider, Loxosceles reclusa (Gertsch & Mulaik 1940), is distributed throughout the south-central United States (Gertsch & Ennik 1983; Vetter 2005).
The brown recluse spider (Loxosceles reclusa) has been recognized as a cause of necrotizing bites since at least 1957, but most of the literature consists of laboratory studies using animals, human sera, or case reports of more dramatic examples of bite reactions.