telangiectasia
noun
tel·an·gi·ec·ta·sia
ˌte-ˌlan-jē-ˌek-ˈtā-zh(ē-)ə 
ˌtē-
ˌtē-
tə-
variants
or telangiectasis
plural telangiectasias or telangiectases
ˌte-ˌlan-jē-ˈek-tə-ˌsēz
ˌtē-,
tə-
: an abnormal dilation of red, blue, or purple superficial capillaries, arterioles, or venules typically localized just below the skin's surface (as of the face) compare spider vein
Examples of telangiectasia in a Sentence
Recent Examples on the Web
Spider veins, also known as telangiectasias or thread veins, resemble spider webs or tree branches.
—
Laura Schober, Health, 12 Jan. 2025
But one patient advocacy group has publicly shared that Yu’s team has designed an oligonucleotide for a toddler with ataxia-telangiectasia, a neurodegenerative disorder, and hoped to begin to treat her this fall.
—Jocelyn Kaiser, Science | AAAS, 9 Oct. 2019
His inoperable neurological condition HHT (hereditary hemorrhagic telangiectasia) has kept Moskowitz restricted and in rehabilitation since first discovered at the end of last year.
—Scott Springer, Cincinnati.com, 9 May 2018
Di Bernardo suffers from hereditary hemorrhagic telangiectasia, or HHT, which makes the body create blood vessels without the typical capillaries that go between arteries and veins.
—Megan Friedman, Cosmopolitan, 4 Nov. 2015
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Laura Schober, Health, 12 Jan. 2025
But one patient advocacy group has publicly shared that Yu’s team has designed an oligonucleotide for a toddler with ataxia-telangiectasia, a neurodegenerative disorder, and hoped to begin to treat her this fall.
—Jocelyn Kaiser, Science | AAAS, 9 Oct. 2019
His inoperable neurological condition HHT (hereditary hemorrhagic telangiectasia) has kept Moskowitz restricted and in rehabilitation since first discovered at the end of last year.
—Scott Springer, Cincinnati.com, 9 May 2018
Di Bernardo suffers from hereditary hemorrhagic telangiectasia, or HHT, which makes the body create blood vessels without the typical capillaries that go between arteries and veins.
—Megan Friedman, Cosmopolitan, 4 Nov. 2015
Cite this Entry
“Telangiectasia.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/telangiectasia. Accessed 31 Oct. 2025.
Copy CitationMedical Definition
telangiectasia
noun
tel·an·gi·ec·ta·sia
ˌtel-ˌan-jē-ˌek-ˈtā-zh(ē-)ə
ˌtēl-
ˌtēl-
təl-
variants
or telangiectasis
plural telangiectasias or telangiectases
-tə-ˌsēz
: an abnormal dilation of red, blue, or purple superficial capillaries, arterioles, or venules typically located just below the skin's surface (as on the face) see ataxia-telangiectasia, hereditary hemorrhagic telangiectasia, spider vein
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