dilation of tiny capillaries (blood vessels), usually affecting the skin, with a central red dot from which the blood vessels radiate!-- google_ad_client = "pub-2371764724899146"; google_alternate_ad_url = "http://www.themcfox.com/multiple-sclerosis/ms-drugs/glossary/alternate1-250_250.htm"; google_ad_width = 250; google_ad_height = 250; google_ad_format = "250x250_as"; google_ad_channel =""; google_color_border = "FFFFFF"; google_color_bg = "FFFFFF"; google_color_link = "0000FF"; google_color_url = "9999AA"; google_color_text = "000080";

a dilation of superficial capillaries with a central red dot from which blood vessels radiate

a collection of tiny dilated blood vessels