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vascular spider

   Also found in: Dictionary/thesaurus, Financial, Encyclopedia, Wikipedia, Hutchinson 0.04 sec.
spider /spi·der/ (spi´der)
1. an arthropod of the class Arachnida.

arterial spider  vascular s.
black widow spider  a spider, Latrodectus mactans, whose bite causes severe poisoning.
vascular spider  a telangiectasis caused by dilatation and ramification of superficial cutaneous arteries, appearing as a bright red central area with branching rays somewhat resembling a spider; commonly associated with pregnancy and liver disease.

vascular spider

vascular spider.


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