• (n.) Dilatation of the capillary vessels.
(tә-lan″je-ek´tә-sis) the lesion produced by telangiectasia, which may be present as a coarse or fine red line or as a punctum with radiating limbs (spider). telangiectasia.
Tel·an`gi·ec'ta·sis noun [ New Latin , from Greek ... end + ... vessel + ... extension.] (Medicine) Dilatation of the capillary vessels. 
Type: Term Pronunciation: tel-an′jē-ek′tă-sis, -sēz Definitions: 1. A lesion formed by a dilated capillary or terminal artery, most commonly on the skin. See: telangiectasia
telangiectasis, telangiectasia 1. A chronic dilatation of the capillaries and other small blood vessels. 2. Chronic dilation of groups of capillaries causing elevated dark red blotches on the skin.