A dilation of superficial capillaries with a central red dot from which blood vessels radiate WordNet 3.0 & Open English WordNet

A spider angioma or spider naevus, also nevus araneus, is a type of telangiectasis found slightly beneath the skin's surface, often containing a central red spot and deep reddish extensions which radiate outwards like a spider's web or a spider's legs. Wikipedia

medical condition Wikidata